Abstract: Fumaramide-containing monomers are disclosed which are especially useful in the preparation of biocompatible devices, especially contact lenses.

Abstract: Compounds of the general formula I: ##STR1## wherein R.sup.1 signifies a COOX group or the group ##STR2## R.sup.2 and R.sup.3 are the same or different and signify a hydrogen atom, a lower straight- or branched-chain, hydrocarbon radical, a phenyl or benzyl group or either R.sup.2 or R.sup.3 signifies the group ##STR3## or R.sup.2 or R.sup.3 together signify a trimethylene or tetramethylene radical, R.sup.4 represents a straight- or branched-chain mono- or poly-hydroxyalkyl radical, R.sup.5 represents a hydrocarbon atom, a lower straight- or branched-chain, optionally mono- or poly-hydroxylated, hydrocarbon radical, Q signifies an oxygen or sulfur atom or the group ##STR4## and X represents hydrogen atoms and/or metal ion equivalents, and their salts with physiologically harmless organic bases, are valuable complexing agents, complexes and complex salts for diagnostic imaging.

Abstract: The invention concerns nitric acid esters of cyclohexanol of formula I ##STR1## in which A signifies a valency bond or a C.sub.1 -C.sub.6 -alkylene chain and B the group --NR.sup.1 --CO--Z, --NR.sup.1 --SO.sub.2 --Z or --CO--NR.sup.2 --Z, whereby R.sup.1 signifies hydrogen or a C.sub.1 -C.sub.6 -alkyl alkyl group R.sup.2 hydrogen, a hydroxyl, hydroxy-C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl or C.sub.2 -C.sub.6 -alkynyl group and Z signifies hydrogen a C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl or C.sub.2 -C.sub.6 -alkynyl group which may optionally be substituted for the case that B is an --NR.sup.1 --CO--Z group, Z can also signify a C.sub.1 -C.sub.6 -alkoxy group.

Abstract: The present invention pertains to a method of preparing substituted and unsubstituted N-hydroxy-2-aminobutane diacid derivatives which can be dehydrated to 2-aminobut-2-ene dioic acid derivatives, which can be subsequently converted to pyridine and quinoline derivatives.

Abstract: Liquid-melt aliphatic dicarboxylic acids tend to undergo undesirable discoloration during prolonged storage. The discoloration can be avoided by an addition of 0.1 to 3.0% by weight of a primary amine.

Abstract: A lubricating oil soluble compound suitable for use as a dispersant additive is obtainable by reacting at elevated temperature a polyacrylate with a dispersant having at least one reactive nitrogen--containing moiety.Intermediates of the general formula IV ##STR1## where Y.sup.1 is a group derived from the reaction of the polyacrylate with the reactive nitrogen-containing moieties (i.e. primary or secondary amine) are novel.The process for preparing the lubricating oil soluble compounds can be a one step or multistep process.Lubricating oil compositions comprise a major proportion of lubricating oil and a minor proportion of the lubricating oil soluble compounds.

Abstract: A process for making unsaturated .alpha.-amines from olefins wherein the process includes adding an aminating agent, an olefin and a molybdenum based catalyst to a reaction vessel having a nitrogen atmosphere. The catalyst may be described by the general formula LL'MoO.sub.2, L.sub.2 L'MoO.sub.2, or LL'MoO(X--Y).

Abstract: Oxamide granules are produced by (A) feed-mixing ammonia to a starting material comprising 60 to 100 weight % of a diester of oxalic acid with a C.sub.1-6 aliphatic alcohol, and 0 to 40 weight % of the same aliphatic alcohol as mentioned above, to produce oxamide and the aliphatic alcohol as by-product, while controlling the aliphatic alcohol content to 5 to 40% based on the weight of the reaction mixture to provide the resultant oxamide wetted by the aliphatic alcohol; (B) granulating the wetted product while maintaining the content of the aliphatic alcohol at a level of 5 to 40% based on the weight of the wetted reaction product; (C) heat-evaporating away the aliphatic alcohol from the wetted granules; and optionally (D) re-wetting the resultant dry oxamide granules with water in an amount of 5 to 20% based on the weight of the dry oxamide granules; and (E) re-drying the re-wetted oxamide granules, to provide oxamide granules having an enhanced mechanical strength and form-stability in water.

Abstract: .alpha.-fluoro-.beta.-dicarbonyl compounds are prepared by reacting a halogenated dicarbonyl compound at temperatures of 20.degree. to 100.degree. C. with an addition product of hydrogen fluoride and a trialkylamine. This process is easy to carry out in technical terms and can also be carried out on a large scale.

Abstract: Diamidopolyamines are prepared by reacting glutamic acid with two moles, per mole of glutamic acid, of a defined class of diamines, including oxyethyelene diamines, oxypropylenediamines, oxyethylene/propylene diamines, oxypropylene triamines, 1,2-diaminocyclohexane and isophorone diamine, whereby each of the carboxyl groups of the glutamic acid will react with an amine group of the amine reactant to thereby provide primary amine terminated amidopolyamines containing, internally, the unreacted primary amine group of the glutamic acid.

Abstract: A coupling agent useful in conducting immunoassays, particularly assays for B12, is disclosed. The coupling agent has the formula ##STR1## Z and Z' can be the same or different and each is ##STR2## k, m and n are integers from 1 to 10, X is an alkylene group, a cycloalkylene group, an alkylcycloalkylene group, a bivalent aromatic group, or an aminoalkylene group, R and R' can be the same or different, and each is a substituted or unsubstituted aminoalkylene group having from 1 to 10 carbon atoms or a cycloalkylene or alkylcycloalkylene group having from 5 to 20 carbon atoms. Z and Z' are the same except that they can be the same or different when both are ##STR3## A method for purifying an aqueous intrinsic factor solution which contains R-protein is disclosed.

Abstract: The present invention provides the compound having the structure: ##STR1## wherein each of R.sub.1 and R.sub.2 are independently the same as or different from each other; when R.sub.1 and R.sub.2 are the same, each is a substituted or unsubstituted arylamino, cycloalkylamino, pyridineamino, piperidino, 9-purine-6-amine, or thiozoleamino group; when R.sub.1 and R.sub.2 are different, R.sub.1 =R.sub.3 --N--R.sub.4, wherein each of R.sub.3 and R.sub.4 are independently the same as or different from each other and are a hydrogen atom, a hydroxyl group, a substituted or unsubstituted, branched or unbranched alkyl, alkenyl, cycloalkyl, aryl, alkyloxy, aryloxy, arylalkyloxy, or pyridine group, or R.sub.3 and R.sub.4 bond together to form a piperidine group and R.sub.2 is a hydroxylamino, hydroxyl, amino, alkylamino, dialkylamino or alkyloxy group; and n is an integer from about 4 to about 8.

Abstract: A process for making unsaturated .alpha.-amines from olefins wherein the process includes adding an aminating agent, an olefin and a molybdenum based catalyst to a reaction vessel having a nitrogen atmosphere. The catalyst may be described by the general formula LL'MoO.sub.2, L.sub.2 L'MoO.sub.2, or LL'MoO(X-Y).

Abstract: Novel complexes of paramagnetic ions and compounds bearing long acyl chains have been synthesized as magnetic resonance imaging contrast agents. These novel liposoluble contrast agents may be administered alone, or with lipids, suspending agents or other additives. The lipids may be in the form of liposomes, micelles or lipid emulsions. The contrast agents of the invention have particular use in magnetic resonance imaging of the liver, blood pool and reticuloendothelial system.

Abstract: A d- or l-tartaric acid amide derivative serving as a host compound and a method of producing the amide derivative which combines with a guest compound to form a clathrate compound and which is expressed by the following Formula (A) or (B): ##STR1##

Abstract: A low viscosity, diprimary amine-terminated reactive liquid polymer with low residual amine content, comprising the reaction product of a diprimary amine having the following formulaH.sub.2 N--R--NH.sub.2wherein --NH.sub.2 is a primary terminal amine group; andwherein R is(1) a C.sub.4 -C.sub.12 aliphatic chain having alkyl branches containing 2 to 4 carbons, wherein the positions of said alkyl branches within the C.sub.4 -C.sub.12 aliphatic chain are such that they impart relatively different rates of reactivity to the terminal primary amine groups; or(2) a carbon to carbon backbone containing at least one non-reactive heteroatom, comprising(a) a C.sub.2 -C.sub.20 aliphatic or cycloaliphatic moiety containing at least one tertiary amine; or(b) a polyoxyalkylene wherein the alkyl portion of said polyoxyalkylene contains 2 to 4 carbon atoms;and a functional-terminated reactive liquid polymer useful as an epoxy resin modifier employed with a curing agent.

Abstract: .alpha.-Fluoro-substituted N-acryloylamino acid derivatives of the formula ##STR1## are used to make polymers optionally for chromatographic resolution of racemates into their enantiomers. The fluorine atom improves performance in many instances.

Abstract: An efficient and commercially-viable method for the stereoselective transformation of a diol to an alcohol is disclosed. The present method is particularly well-suited for the preparation of the unnatural D-isomer of malic acid or its derivatives from the abundant naturally occurring L-tartaric acid or derivatives thereof.

Abstract: A polymer comprising a carbon-carbon backbone chain and at least one N-(substituted oxalyl)carbamoyl group of the formula: --CO--NH--CO--CO--OR wherein R is a hydrocarbon group as a side chain attached to said backbone chain.

Abstract: Novel carbonyl containing compositions are prepared by contacting, in the presence of a free radical initiator, a first compound selected from the group consisting of saturated hydrocarbons, substituted saturated hydrocarbons, polymers and mixtures thereof with a carbonyl containing compound or mixtures thereof having the structure: ##STR1## where X and Y are independently selected from OH, OR.sub.1, NR.sub.1 R.sub.2 and R.sub.1 wherein R.sub.1 and R.sub.2 are selected independently from the group consisting of aryl radicals or alkyl radicals of from 1 to 18 carbon atoms.

Abstract: Novel thiol-terminated hydroxyamides, and processes for their preparation and use are provided. These hydroxyamide compounds may be prepared by the reaction of a mercapto-functional alkyl ester, such as methylmercaptopropionate, with a molar excess of an alcohol-substituted amine, such as a b-hydroxyalkyl amine. The thiol-terminated hydroxyamides are useful as polymerization chain transfer agents, particularly when it is desirable to form polymers or oligomers containing functional hydroxyamide end groups. By chain terminating such polymers or oligomers with reactive hydroxyamide end groups the polymers or oligomers can be further reacted with acid-containing monomers or polymers to form block or graft copolymers.

Abstract: A material useful as a dispersant additive in oleaginous compositions selected from fuels and lubricating oils comprising the reaction products of:(i) at least one intermediate adduct comprised of the reaction products of(a) at least one polyepoxide, and(b) at least one member selected from the group consisting of polyamines, polyols, and amino alcohols; and(ii) at least one of (a) hydrocarbyl substituted C.sub.3 -C.sub.10 monocarboxylic or C.sub.4 -C.sub.10 dicarboxylic acid producing material; (b) an aldehyde and a hydrocarbyl substituted hydroxy aromatic compound; or (c) an aldehyde and the reaction product of a hydrocarbyl substituted C.sub.3 -C.sub.10 monocarboxylic or C.sub.4 -C.sub.10 dicarboxylic acid or anhydride and an amine substituted hydroxy aromatic compound.Also included is a process for preparing said material and an oleaginous composition containing said material.

Abstract: An efficient and commerically-viable method for the stereoselective transformation of a diol to an alcohol is disclosed. The present method is particularly well-suited for the preparation of the unnatural D-isomer of malic acid or its derivatives from the abundant naturally occurring L-tartaric acid or derivatives thereof.

Abstract: Binary azulenesquaric acid dyes of the formula ##STR1## where X is a bridging member, Y is hydrogen, cyano or formula CO--OR.sup.5, CO--NHR.sup.5, OR.sup.5, O--CO--OR.sup.5, NH--CO--R.sup.5, NH--CO--OR.sup.5 or NH--SO.sub.2 --R.sup.5, where R.sup.5 is hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.12 -alkenyl, C.sub.5 -C.sub.7 -cycloalkyl or unsubstituted or substituted phenyl, L.sup.1 and L.sup.2 are each, independently of one another, a chemical bond or unsubstituted or substituted C.sub.1 -C.sub.12 -alkylene and R.sup.1, R.sup.2, R.sup.3, R.sup.4, Q.sup.1, Q.sup.2, Q.sup.3 and Q.sup.4 are each, independently of one another, hydrogen or unsubstituted or substituted C.sub.1 -C.sub.12 -alkyl, their intermediates and an optical recording medium containing the novel dyes are described.

Abstract: Surfactant composition prepared by reacting dicarboxylic acids and esters thereof, such as adipic acid, diethyl oxalate, etc.; a polyoxyalkyleneamine residue, such as an alkylene glycol diamine bottoms product, and fatty acids and esters thereof, such as tallow acid or coconut acid, are described. These nonionic surfactant compositions are useful for preparing surfactant bars, or other molded or shaped articles such as toys.

Abstract: Novel cationic amide compositions having the structure ##STR1## where R.sup.1 represents an alkylene group of the formula C.sub.n H.sub.2n, and alkenyl group of the formula C.sub.n H.sub.n, or a phenyl group, or mixtures thereof, where n equals 0 to 10; R.sup.2 represents C.sub.m H.sub.2m, where m equals 1 to 4; R.sup.3 independently represents methyl, ethyl or propyl; and the combination of R.sup.4 and X.sup.- represents the remnant from a quaternizing agent have been discovered and have been found useful as demulsifiers in breaking petroleum emulsions as might be produced during fireflooding petroleum recovery procedures. In one embodiment, the cationic amide/ester compositions are made by reacting (1) a dicarboxylic acid of the formula: ##STR2## where R.sup.1 represents C.sub.n H.sub.

Abstract: Disclosed is a method for selective formation of amidoamines which comprises reacting a carboxylic acid group, such as, for example, a diacid or an aliphatic acid terminated amide with an aminopropylated disecondary amine which contains a secondary amine terminus in the same molecule at a temperature of about 150.degree. C. to about 260.degree.0 C.

Abstract: The invention relates to a process for the preparation of N-hydroxy-alpha-amino acids and the derivatives thereof by reacting a derivative of an alpha-amino acid with an aromatic aldehyde to form a Schiff base, oxidizing the Schiff base to an oxaziridine and converting the oxaziridine into the corresponding N-hydroxy-alpha-amino acid derivative and, if so desired, converting that derivative into the acid or a different derivative, in which an alpha-amino acid amide is used as starting material.

Abstract: Novel thiol-terminated hydroxyamides, and processes for their preparation and use are provided. These hydroxyamide compounds may be prepared by the reaction of a mercapto-functional alkyl ester, such as methylmercaptopropionate, with a molar excess of an alcohol-substituted amine, such as a .beta.-hydroxyalkyl amine. The thiol-terminated hydroxyamides are useful as polymerization chain transfer agents, particularly when it is desirable to form polymers or oligomers containing functional hydroxyamide end groups. By chain terminating such polymers or oligomers with reactive hydroxyamide end groups the polymers or oligomers can be further reacted with acid-containing monomers or polymers to form block or graft copolymers.

Abstract: The invention relates to new pure D- or L-N-hydroxy-alpha-amino acids and the derivatives thereof, including optically active N-hydroxy-phenylglycine amide, which has antibiotic and antitumor activity.

Abstract: A method of removing copper from oxamide obtained through a process which involves the use of copper catalysts, by contacting it with an aqueous solution of a suitable complexing agent, which is capable of forming copper-containing water-soluble complexes and imparts to the aqueous solution a pH comprised between 2 and 8, optionally repeating the contacting step and, finally, recovering the purified oxamide by solid-liquid separation techniques.The claimed process affords oxamide containing less than 25 ppm of copper.

Abstract: A process is disclosed for the purification of the diamide of oxalic acid obtained by means a process wherein copper catalysts are used, by means of the washing with aqueous solutions of an ammonium salt of an organic or inorganic acid, operating at a pH value comprised within the range of from 2 to 8, and at a temperature comprised within the range of from 40.degree. to 150.degree. C.

Abstract: The invention relates to a process for racemizing an optically active N-benzylidene amino-acid amide, characterized in that a solution of the N-benzylidene amino-acid amide is mixed in a water-miscible organic solvent with at least 0.05 mole strong base per liter solution.The invention further relates to a process for preparing an L-amino acid by enzymatic separation of the corresponding DL-amino-acid amide with an enzyme preparation from Pseudomonas putida, in which process also uncoverted D-amino-acid amide is left behind in solution, characterized in that benzaldehyde is added to the solution, during which addition a precipitate of D-N-benzylidene amino-acid amide is being formed, this precipitate is subsequently, after being separated off, dissolved in an acetone-water mixture, 0.08-0.15 mole KOH/liter solution is subsequently added, the resulting solution is stirred for 1-20 hours at 20.degree.-60.degree. C.

Abstract: Disclosed is a method which comprises introducing into a reaction zone a feed which comprises a hydroxyl compound reactant, R"OH, at least one amide reactant selected from R-CONH.sub.2 and R-CONHR', and an inorganic catalyst, thereby reacting R"OH with said amide reactant to produce a rection mixture containing at least one disubstituted amide selected from R-CONHR".sub.2 and R-CONHR'R", whereineach of R, R' and R" contains no acetylenic unsaturation and 1 to 30 carbon atoms,each of R, R' and R" is selected from a hydrocarbyl group and a hydrocarbyl group that is substituted with a group selected from carbamoyl, hydrocarbylcarbamoyl, dihydrocarbylcarbamoyl, and hydroxyl,wherein said inorganic catalyst is selected from phosphates and sulfates of a Group 13 element and of a Group 2 metal having an atomic weight less than 145, and mixtures thereof.

Abstract: An amine is produced by reacting in the presence of hydrogen at elevated temperature a first reactant which is a compound substantially involatile at the elevated temperature employed and having either one, two or more hydroxyl functions, each of which is independently either a primary or secondary hydroxyl function, with a second reactant which is either ammonia or a primary or a secondary amine in the presence of a reductive amination catalyst wherein the reaction is effected in either a continuously or periodically open system.

Abstract: Novel N-alkenoyl enamide of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl,R.sub.2 is hydrogen, C.sub.1 -C.sub.4 alkyl or halogen, andR.sub.3 and R.sub.4 are each independently of the other C.sub.1 -C.sub.4 alkanolyl, C.sub.1 -C.sub.18 alkoxycarbonyl, benzoyl, phenyl, cyano or carbamoyl, and R.sub.4 can also be hydrogen,are used for photocrosslinkable compositions suitable for use in photographic solutions, as UV absorbers and as textile finishing agents.

Abstract: Disclosed is a diacetylene compound comprising, as structural units, (a) at least one member selected from diacetylene group-containing organic groups of the formulae (I) and (II):R.sup.I --C.tbd.C--C.tbd.C--R.sup.II -- (I)and--R.sup.III --C.tbd.C--C.tbd.C--R.sup.IV -- (II)wherein R.sup.I is hydrogen or a (C1-16) monovalent organic group, and R.sup.II, R.sup.III and R.sup.IV are a (C1-13) divalent organic group, (b) at least one organic group having at least one carbon-to-carbon double bond, and (c) at least one connecting group connecting the units (a) and (b), which connecting group is selected from amide, imide, ester, ether, amino, imino, urethane, sulfonyl and carbonyl bonds. A cured shaped article made of this compound exhibits isotropically a high elastic modulus and has excellent mechanical properties.

Abstract: A new process is described for the preparation of oxalic acid esters and amides of general formula (I) ##STR1## wherein Z designates an --OR or --NR.sup.1 R.sup.2 group, wherein R represents substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or aryl-alkyl, R.sup.1 is hydrogen or substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or aryl-alkyl, R.sup.2 represents substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or aryl-alkyl, or R.sup.1 and R.sup.2 taken together with the adjacent nitrogen atom represent a saturated 5-, 6-, 7-, or 8-membered heterocyclic ring, which may contain an additional heteroatom selected from --O--, --S--, and --N(H, Alkyl)--, and optionally bear one or more alkyl or alkenyl substituents, andZ.sup.1 designates an --OR or --NR.sup.1 R.sup.2 group, wherein R, R.sup.1, and R.sup.2 are as defined before, or a group --NHCOCH.sub.3, which comprises the base-catalysed reaction of diacetyloxamide with an alcohol ROH or/and an amine HNR.sup.1 R.sup.2.

Abstract: A process is described for the preparation of oxamide derivatives wherein one or both --NH.sub.2 groups are replaced by primary or secondary amino groups, through reaction of oxamide with a suitably selected amine of formula RR.sup.1 NH wherein R represents a substituted straight or branched (C.sub.2 -C.sub.12)alkyl radical wherein the substituent(s) or at least one of the substituents is selected from the group consisting of hydroxy, amino, mono-substituted amino, and di-substituted amino, and R.sup.1 represents hydrogen or an optionally substituted (C.sub.1 -C.sub.6)alkyl radical; representative oxamide derivatives which can thus be obtained useful as corrosion inhibitors, intermediates for polymers, polymer stabilizers, and slow-release fertilizers, are also described.

Abstract: The present invention involves new anti-foam compositions which control foaming in aqueous systems and by nature of their unique cloud point characteristics are insoluble and particulate above their inverse cloud point, and soluble below it. This property makes them non-depositing defoamers. As the defoamed aqueous system cools down these novel products become soluble, preventing insoluble material (pitch) from depositing on process equipment and matter being processed. The compounds of this invention allow for the formulation of mineral oil free defoamers.

Abstract: The invention relates to the preparation and use of novel extracting agents and novel propane diamides for the recovery of actinides and/or lanthanides.These extracting agents are constituted by propane diamides of formula: ##STR1## For example, the extracting agent can be 2-hexyl-N,N'-dimethyl-N,N'-dibutyl-propane diamide or 2-ethoxyethyl-N,N'-dimethyl-N,N'-dibutyl-propane diamide.They are more particularly used for the recovery of actinides and/or lanthanides present in the trivalent state in an acid aqueous solution, particularly in a nitric solution.

Abstract: Compounds of the formula ##STR1## in which R.sub.1 represents hydrogen or acyl, A represents an optionally N-alkylated .alpha.-amino acid residue which is bonded N-terminally to R.sub.1 and C-terminally to the group --NR.sub.2 --, R.sub.2 represents hydrogen or lower alkyl, R.sub.3 represents hydrogen, lower alkyl, optionally etherified or esterified hydroxy-lower alkyl, cycloalkyl, cycloalkyl-lower alkyl, bicycloalkyl-lower alkyl, tricycloalkyl-lower alkyl, aryl or aryl-lower alkyl, R.sub.4 represents hydroxy or etherified or esterified hydroxy, R.sub.5 represents lower alkyl having 2 or more carbon atoms, optionally etherified or esterified hydroxy-lower alkyl, cycloalkyl, cycloalkyl-lower alkyl, bicycloalkyl, bicycloalkyl-lower alkyl, tricycloalkyl, tricycloalkyl-lower alkyl, aryl, aryl-lower alkyl, optionally substituted carbamoyl, optionally substituted amino, optionally substituted hydroxy or optionally substituted mercapto and R.sub.

Abstract: The present invention provides pharmaceutical compositions containing at least one .alpha.-halogenated dicarboxylic acid of the general formula: ##STR1## wherein Hal is a chlorine, bromine or fluorine atom, R is a hydrogen atom or Hal and m is a number of from 4 to 16, and/or at least one pharmacologically acceptable salt, ester or amide thereof.The present invention also provides new compounds of general formula (I) but in which m is a number of from 8 to 16 and processes for the preparation thereof.

Abstract: The invention relates to a process for racemizing an optically active N-benzylidene amino-acid amide, characterized in that a solution of the N-benzylidene amino-acid amide is mixed in a water-miscible organic solvent with at least 0.05 mole strong base per liter solution.The invention further relates to a process for preparing an L-amino acid by enzymatic separation of the corresponding DL-amino-acid amide with an enzyme preparation from Pseudomonas putida, in which process also unconverted D-amino-acid amide is left behind in solution, characterized in that benzaldehyde is added to the solution, during which addition a precipitate of D-N-benzylidene amino-acid amide is being formed, this precipitate is subsequently, after being separated off, dissolved in an acetone-water mixture, 0.08-0.15 mole KOH/liter solution is subsequently added, the resulting solution is stirred for 1-20 hours at 20.degree.-60.degree. C.

Abstract: Novel Isomaleimido and isophthalimido derivatives of chromophoric compounds are provided which are useful in analytic techniques for the detection and measurement of biological compounds such as bacteria, enzymes, hormones and the like.

Abstract: Conjugates of isomaleimides and isophthalimides and organic chromophoric compounds exhibiting fluorescence, luminescence, chemiluminescence or absorption of analytical value having the structural formula I and II ##STR1## wherein R is an organic aromatic molecule which may be substituted, heteroaromatic which may be substituted, aliphatic having 1 to 50 carbon atoms and which may be substituted or an organic chromophoric molecule exhibiting fluorescence, luminescence, chemiluminiescence or absorption of analytical value. R' is an organic chromophoric molecule exhibiting fluorescence, luminescence, chemiluminescence, or absorption of analytical value; R.sub.1 is hydrogen, halogen, carboxylic, alkyl, aryl, hydroxyl, amino group which may be substituted, nitro or sulfonic group. R.sub.2, R.sub.3 and R.sub.4 have the same meaning as R.sub.

Abstract: The invention relates to novel extracting agents and novel propane diamides, their use for the recovery of actinides and/or lanthanides and their preparation process. These extracting agents are constituted by propane diamides of formula: ##STR1## For example, the extracting agent can be 2-hexyl-N,N'-dimethyl-N,N'-dibutyl-propane diamide or 2-ethoxyethyl-N,N'-dimethyl-N,N'-dibutyl-propane diamide. They are more particularly used for the recovery of actinides and/or lanthanides present in the trivalent state in an acid aqueous solution, particularly in a nitric solution.

Abstract: A sterically unhindered, trifunctional primary amine is provided. This compound is useful as a crosslinking agent for a composition containing an amine-reactive polymer. Also provided is a low temperature cure composition containing the amine-reactive polymer and the trifunctional primary amine, and a crosslinked coating obtained by curing such a composition. Additionally, there is provided a process of synthesizing the novel trifunctional primary amine.

Abstract: Novel 2-azetidinones of the formula ##STR1## wherein R is alkyl of 1 to 4 carbon atoms, R.sub.1 is selected from the group consisting of hydrogen, --OH, protected hydroxy and --OCH.sub.2 --COOR', R' is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and R.sub.2 is selected from the group consisting of alkyl of 1 to 4 carbon atoms and hydroxyl protective group and a novel process and novel intermediates for their preparation and a process for the preparation of compounds of the formula ##STR2## wherein R has the above definition, R'd is selected from the group consisting of hydrogen, --OH and protected hydroxyl and R.sub.3 is selected from the group consisting of hydrogen and R.sub.3 ', R.sub.3 ' is amino protective group which are useful intermediates.

Abstract: Novel bis-hydroxy diamides having the formula: ##STR1## where R is an alkyl or aryl moiety having from 3 to 10 carbon atoms and where x ranges from 1 to 6 may be produced by reacting dicarboxylic acids with polyethylene glycol monoamines. Suitable dicarboxylic acids include adipic acid, terephthalic acid, isophthalic acid, t-butyl isophthalic acid, 1,1,3-trimethyl-5-carboxy-3-(p-carboxyphenyl)indane, and mixtures thereof. Suitable monoamines include diethylene glycol monoamine, also known as Diglycolamine.RTM. amine (DGA); triethylene glycol monoamine (TEGMA) and tetraethylene glycol monoamine (T.sub.4 EGMA), among others. The resulting bis-hydroxy diamides are useful to make hydroxy-terminated polyamides and as fuel additive corrosion inhibitors. The diamides have unusual solubility properties.