Abstract: A composition for enhancing and maintaining mechanical properties such as tensile strength of an ethylene polymer on heating at elevated temperature comprises (A) an initiator of cross-linking having a half-life measured at 110.degree. C. of 0.1 to 50 hours and (B) an alkylthioalkylenecarboxylic acid ester of a polycarbocyclic polyhydric phenol.
Abstract: Dehydrohalogenation-rearrangement of 1,1-bis(4-oxy-substituted aryl)-2-haloethanes to yield 4,4'-dioxysubstituted stilbenes is effected by heating an acidic reaction medium comprising the 1,1-bis(4-oxy-substituted aryl)-2-haloethane dissolved in a solution of an aliphatic carboxylic acid and a carboxylic acid salt. The process is particularly directed to the preparation of 4,4'-dihydroxystilbene from 1,1-bis(4-hydroxyphenyl)-2-chloroethane.
Abstract: Novel cyclization substrates of the formula: ##STR1## wherein: (a) R.sub.1 is H or alkyl of one to four carbons;(b) R.sub.2 is H or alkyl of one to four carbons, with the proviso that R.sub.1 is H when R.sub.2 is alkyl; and with the proviso that P.sub.2 is H when R.sub.1 is alkyl;(c) R.sub.3 is a leaving group selected from the group consisting of OH, alkoxy of one to four carbons, alkoxyalkyoxy of from two to about four carbons, acyloxy of from about one to about seven carbons, and trialkylsilyloxy;(d) R.sub.4 is halogen, alkoxy of from one to four carbons, hydrocarbyl of from one to about four carbons, hydrocarbyl of from one to about four carbons substituted by one or more (1) halogens or (2) alkoxy moieties of from one to two carbons; and(e) R.sub.5 is H, alkyl of one to six carbons, hydroxy, or an esterified or estherified moiety of (1) less than eight carbons selected from the group consisting of alkoxy, trialkylsilyloxy, aralkyloxy, cyclo-alkoxy, and heterocyclo-oxy radicals; (2) .alpha.
Abstract: Novel polynuclear hindered phenols having three hindered phenol groups each bonded through a methylene group to a substituted aromatic nucleus and methods of making same are provided which have stabilizing activity in organic substances normally susceptible to oxidative degradation.
Abstract: Substituted 2-acyloxybenzoic acid anilides of the general formula ##STR1## in which R.sup.1 is alkyl or alkoxy with up to 6 carbon atoms,R.sup.2 is lower alkyl, halo-lower alkyl, halo, nitro, lower alkyoxycarbonyloxy or lower acyloxy,R.sup.3 is hydrogen, lower alkyl, halo-lower alkyl, lower alkoxy, lower alkylmercapto, halo, nitro or lower alkoxycarbonyloxy,N is 1, 2 or 3, andX is hydrogen and Y is nitro, orX is bromine or tertiary butyl and Y is chlorine or bromine, orX is chlorine and Y is chlorine or bromine, or hydrogen with R.sup.1 being alkoxy,Which possess insecticidal and acaricidal properties.
Abstract: Dehydrohalogenation-rearrangement-hydrogenation of 1,1-bis(4-hydroxyaryl)-2-haloethanes in an aliphatic carboxylic acid solvent containing a carboxylic acid salt in the presence of gaseous hydrogen and a hydrogenation catalyst is effected in one step to yield 1,2-bis(4-hydroxyaryl)ethanes. The process is particularly directed to the production of 1,2-bis(4-hydroxyphenyl)ethane from 1,1-bis(4-hydroxyphenyl)-2-chloroethane.
Abstract: A process for the manufacture of .beta.-haloacetals or .beta.-haloketals by reaction of substituted or unsubstituted phenols with vinyl ethers in the presence of chlorine-liberating compounds and an inert diluent or solvent at a temperature of from -70 to +40.degree. C.
Abstract: Mono-, di- and tri-esters of 3-(hydroxy or hydroxymethyl)-4-hydroxy-.alpha.-(aminomethyl)benzyl alcohols, obtained by methods involving reduction of the corresponding mono- and di-ester ketones, are useful for producing sympathomimetic effects, such as bronchodilation, of long duration with low cardiovascular stimulating effect, in warm-blooded mammals.
Type:
Grant
Filed:
February 2, 1976
Date of Patent:
February 6, 1979
Assignee:
Sterling Drugs Inc.
Inventors:
Hiroaki Minatoya, Benjamin F. Tullar, Walter D. Conway
Abstract: Compounds of the formula: ##STR1##The compounds can be produced by reacting the corresponding 4,4'-bis-(halogenmethyl)-ar-octahalogendiphenylethers with at least 2 moles of alkali acetate or formiate in the presence of alcohol as transesterification agent and solvent. The compounds are useful as intermediates for the production of insecticides, herbicides or hydrophobizing agents.
Abstract: Novel phenethylamines of the formula ##STR1## wherein X is selected from the group consisting of hydrogen, acyl of an aliphatic carboxylic acid of 2 to 6 carbon atoms and benzoyl and Y is selected from the group consisting of hydrogen and --OX and their non-toxic, pharmaceutically acceptable acid addition salts having dopaminergic stimulating activity and their preparation and novel intermediates.
Type:
Grant
Filed:
June 24, 1977
Date of Patent:
December 19, 1978
Assignee:
Roussel Uclaf
Inventors:
Lucien Nedelec, Daniel Frechet, Claude Dumont
Abstract: The invention provides novel esters of 1-(p-hydroxyphenyl)-2-(1'-methyl-2'-phenoxyethylamino)-1-propanol having better properties as vascular dilatators, than the corresponding 1-(p-hydroxyphenyl)-2-(1'-methyl-2-phenoxyethylamino)-1-propanol.
Type:
Grant
Filed:
May 10, 1977
Date of Patent:
September 19, 1978
Assignee:
Instituto Luso Farmaco d'Italia S.r.l.
Inventors:
Elso Manghisi, Aldo Salimbeni, Giovanni Ferni
Abstract: Electrolytic oxidation of cresol salts substituted with non-interfering, blocking substituents at least at the 2,4,6-positions relative to the phenolic oxyanion where at least one of the substituents is the cresolic methyl leads to methyl-methyl coupled dehydrodimeric cresols.
Abstract: Aromatic 1,3-diketones are produced by reacting aromatic compounds with acetoacetyl fluoride optionally substituted in the .gamma.-position by fluorine, chlorine and/or bromine, in hydrofluoric acid of at least 90% strength at a temperature of from about -40.degree. to +50.degree. C. The products obtained are important starting products and intermediates for the manufacture of dyestuffs, plastics and pharmaceuticals. Furthermore they can be used for the formation of metal complexes and as metal extracting agents, solution intermediaries and solvents.
Abstract: A novel class of dithiane and disulfone compound is described. These compounds are pharmaceutically active as coronary dilating agents and thus can be used therapeutically in cases of insufficient cardiac blood supply, i.e., in the treatment of angina pectoris. A preferred compound is N-(3,4-dimethoxyphenethyl)-2-(3,4-dimethoxyphenyl)-N-methyl-m-dithiane-2-p ropylamine-1,1-3,3-tetraoxide.
Abstract: Disclosed are basic dyes, e.g., azo dyes and anthraquinone dyes free from sulphonic acid groups and which contain, as characteristic group, a group of the formula ##STR1## in which R and R.sub.1, independently, are substituted or unsubstituted C.sub.1-4 alkyl or are linked to form a ring, orOne of R and R.sub.1 is --NH.sub.2 or C.sub.1-4 alkoxy, the other substituted or unsubstituted alkyl,R.sub.2 and R.sub.3, independently, are hydrogen or C.sub.1-4 alkyl,Y is a bridging group,Q is unsubstituted or substituted phenyl, biphenylyl, naphthyl or ##STR2## in which R.sub.7 is ##STR3## where R.sub.8 ic C.sub.1-4 alkyl, andA.sup.- is an anion. These dyes are useful for the dyeing and printing of polymers and copolymers of acrylonitrile and asymmetrical dicyanoethylene as well as polyesters and polyamides modified to contain acid groups. The dyes build-up well and exhibit good pH stability and stability to boiling.
Abstract: Phenylethanolamines of the formula I ##STR1## wherein R is substituted phenyl or optionally substituted furyl, thienyl, or pyridyl, R.sub.5 is hydrogen, lower alkyl, or optionally substituted benzyl, R.sub.4, R.sub.6, R.sub.8, and R.sub.9 each are hydrogen or lower alkyl, R.sub.7 is hydrogen, halogen, or lower alkyl, Q is --CO--or --CH.sub.2 --, and L is hydrogen or lower alkylcarbonyl, and enantiomers, diastereoisomers and salts thereof; also, process for preparing the compounds. Compounds of the invention possess bronchosposmolytic activity.
Abstract: Preparing indoles and intermediates therefor by reacting an N-haloaniline with a .beta.-carbonylic hydrocarbon sulfide to form an azasulfonium halide, reacting the azasulfonium halide with a strong base to form a thio-ether indole derivative, and then reducing the thio-ether indole, e.g. with Raney nickel, to form the indole compound. When an acetal or ketal of the .beta.-carbonyl hydrocarbon sulfide is used, the azasulfonium salt is treated with a base, and then with an acid to form the thio-ether indole derivative. When an .alpha.-ethyl-.beta.-carbonylic hydrocarbon sulfide is used, the resulting azosulfonium salt reacts with strong base to form a thio-ether indolenine derivative, which on reduction with Raney nickel or complex metal hydrides yields 3-substituted indoles. The aniline may be an aminopyridine to form an aza-indole compound in the process. The azasulfonium salts and thio-ether indole or thio-ether indolenine derivatives can be isolated and recovered from their respective reaction mixtures.
Type:
Grant
Filed:
August 9, 1976
Date of Patent:
January 10, 1978
Assignee:
The Ohio State University Research Foundation
Abstract: The present invention relates to a process for the preparation of saturated hydrocarbons from alcohols, ketones, aldehydes, esters or ethers by hydrogenolysis in the presence of catalyst systems containing an iridium or rhodium component and a halogen component. The process is specifically directed to the production of methane from methanol, toluene from benzaldehyde, ethyl benzene from methyl benzyl alcohol or acetophenone, bis(p-hydroxyphenyl) ethane from anisoin.
Abstract: There is provided, novel, transient pro-drug forms of L-DOPA (3,4-dihydroxy-L-phenylalanine), having the formula: ##STR1## wherein R represents a hydrogen atom, an acyl group, a ##STR2## group, a --CO-pyridyl group, and a --CO--R.sub.3 group, wherein R.sub.3 represents the residue of any N,N-C.sub.1 -C.sub.2 dialkylamino acid or a C.sub.4 -C.sub.6 cycloalkylamino acid ##STR3## wherein R.sub.1 represents a member selected from the group consisting of a hydroxyl group and a --OM group, wherein M is an alkali metal (Na, K, etc.) or an ammonium ion; and wherein R.sub.2 represents a member selected from the group consisting of a ##STR4## group, a --CO-pyridyl group, and a --CO--R.sub.3 group, wherein R.sub.3 represents the residue of any N,N-(C.sub.1 -C.sub.2)-dialkylamino acid or a C.sub.4 -C.sub.6 -cycloalkylamino acid ##STR5## wherein R represents an acyl group; wherein R.sub.2 represents a hydrogen atom; and wherein R.sub.1 represents a --NHCH(R.sub.4)COOR.sub.5 group, wherein R.sub.
Type:
Grant
Filed:
September 7, 1976
Date of Patent:
December 27, 1977
Assignee:
INTERx Research Corporation
Inventors:
Nicolae S. Bodor, Kenneth B. Sloan, Anwar A. Hussain
Abstract: Bis(benzamido)-benzene derivatives having various pharmaceutical activities such as activity for preventing and treating peptic ulcer, peripheral vasodilating action, hypotensive activity and analgesic activity and represented by the formula ##STR1## wherein X, Y, Z, R.sub.1, R.sub.2 and R.sub.3 are as defined hereinafter and a process for preparing the same are disclosed.
Abstract: Agricultural fungicidal compositions containing as an active ingredient one or more of 6-(substitutedphenyl)-3(2H)-pyridazinone compounds, salts thereof and 6-(substituted-phenyl)-4,5-dihydro-3(2H)-pyridazinone compounds, as well as new pyridazinone compounds having fungicidal activities.