Abstract: A method for producing aliphatic O-arylurethanes by the reaction of an aliphatic primary amine with an aromatic hydroxyl compound and urea. Ammonia produced as a by-product in the reaction is removed during the reaction so that the ammonia concentration of the reaction solution is maintained at 2 wt % or less.

Abstract: Acrylates of the general formula ##STR1## where R.sup.1 and R.sup.2 independently of one another are each C.sub.1 -C.sub.8 -alkyl, X is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen, C.sub.1 -C.sub.4 -alkoxy, haloalkyl, cyano or nitro, W is unsubstituted or alkyl-substituted, saturated or unsaturated C.sub.1 -C.sub.10 -alkylene, Y is hydrogen, alkyl, haloalkyl, alkoxyalkyl, cycloalkyl, aralkyl, aryl, aryloxy, halogen, an unsubstituted or substituted C.sub.4 H.sub.4 chain which is fused to the benzene radical, alkoxy, haloalkoxy, alkylthio, thiocyanato, cyano, NO.sub.2, ##STR2## where R' and R" independently of one another are each hydrogen, alkyl, alkoxy, alkylthio or cycloalkyl, or are phenyl which is unsubstituted or substituted by alkyl, halogen or alkoxy, m is 0 or 1, n is from 1 to 4 and Z is oxygen, sulfur, SO or SO.sub.2, and fungicides containing them.

Abstract: The present invention relates to new carbazates of the formula (I) ##STR1## wherein A is C.sub.3 to C.sub.10 alkenyl, C.sub.2 to C.sub.10 haloalkyl, trifluoromethyl, phenyl-C.sub.1 to C.sub.3 alkyl, phenyl-C.sub.2 to C.sub.3 alkenyl, naphthyl-C.sub.1 to C.sub.3 alkyl, C.sub.3 to C.sub.7 cycloalkyl-C.sub.1 to C.sub.3 alkyl, furyl which can be nitro-substituted, diphenyl-hydroxymethyl or indazolyl which can be substituted by one or more C.sub.1 to C.sub.4 alkoxy groups; andR is C.sub.1 to C.sub.4 alkyl,and acid addition salts thereof, a process for the preparation thereof and feed additives comprising the same.The compounds of formula (I) may be used in animal husbandry due to their weight-gain increasing and fodder utilization improving effect.

Abstract: A process is disclosed for the preparation of aralkyl mono- and diurethanes or ureas by carbamylmethylation, or acid-catalyzed addition at a temperature of 40.degree. C. to about 100.degree. C. of formaldehyde and esters of carbamic acid to aromatic hydrocarbons. Aralkyl carbamates and ureas formed by this process can be cracked directly to produce aralkyl diisocyanates, or hydrogenated and then cracked to produce aliphatic diisocyanates, or reacted directly with polyols to produce polyurethanes by functioning as blocked isocyanates.

Abstract: Disclosed herein are N-acyl-N-napthoylglycines and methods of their preparation. The N-acyl-N-napthoylglycines are novel aldose reductase inhibitors useful for the treatment or prevention of diabetic complications.

Abstract: Molecular structures of .beta.-adrenergic antagonists are modified to produce biologically active compounds. The .beta.-antagonists are modified to form molecules of the general structure: ##STR1## wherein R is most generally R"--OCH.sub.2 --, and in some instances is R"--, and R"=an aryl or substituted aryl moiety; R'=--H, --CH.sub.3, or a short chain alkyl moiety; and Y=--OH, or more usually, --OAX or --NHAX, where A=an alkyl, aryl, or aralkyl moiety, and X=a terminal grouping, such as --CH.sub.3, --CF.sub.3 or --(CH.sub.2).sub.n COOH; or AX may be a carrier moiety consisting of a defined peptide or protein.

Abstract: The present invention relates to new carbazates of the general formula (I), ##STR1## wherein A is C.sub.3-10 alkyl, C.sub.3-10 alkenyl, C.sub.2-10 haloalkyl, trifluoromethyl, phenyl-C.sub.1-3 alkyl, phenyl-C.sub.2-3 -alkenyl, naphthyl-C.sub.1-3 alkyl; phenyl optionally substituted by one or more identical or different substituent(s) selected from C.sub.1-4 alkyl, halogen, C.sub.1-4 alkoxy and hydroxy; C.sub.3-7 cycloalkyl-C.sub.1-3 alkyl; optionally nitro-substituted furyl; diphenyl-hydroxy-methyl or indazolyl optionally substituted by one or more C.sub.1-4 alkoxy group(s) andR represents C.sub.1-4 alkyl,with the proviso that if R stands for ethyl, A is other than tertiary butyl, and acid addition salts thereof, a process for the preparation thereof and feed-additives comprising the same.The compounds of the general formula (I) may be used in animal husbandry due to their weight-gain increasing and fodder utilization improving effect.

Abstract: Disclosed herein are N-acyl-N-naphthoylglycines and methods of their preparation. The N-acyl-N-naphthoylglycines are novel aldose reductase inhibitors useful for the treatment or prevention of diabetic complications.

Abstract: The molecule of the new urethanes contains an aliphatic fluoroalcohol, an isocyanate and an aromatic dihydroxy, diamino, aminohydroxy, aminocarboxy or hydroxycarboxy compound. They are prepared by reacting an aliphatic fluoroalcohol with a diisocyanate or triisocyanate to give the fluoroalcohol/isocyanate adduct and by reacting this adduct with said aromatic compound to give the desired urethanes composed of an aliphatic fluoroalcohol, an isocyanate and the bifunctional aromatic compound mentioned, and also be reacting a urethane of this type which also carries an active hydrogen atom on the bifunctional aromatic compound, with an isocyanate compound containing one or more isocyanate groups. The new urethanes are preferably used for imparting an oleophobic and hydrophobic finish to textiles and leather.

Abstract: (+)-trans-1a,2,3,4a,5,6-Hexahydro-9-hydroxy-4-propyl-4H-naphth[1,2-b]-1,4-o xazine is elaborated by a series of process steps that retain the enantiomeric purity of the starting material, D-aspartic acid. The product is a direct acting dopaminergic agent, useful in the treatment of Parkinson's disease.

Abstract: The present invention relates to a process for the synthesis of isocyanates and of isocyanate derivatives. Isocyanates are obtained by reacting an organic halide with a metal cyanate in an organic medium in the presence of a catalyst consisting of a complex of nickel with at least one organic ligand, in which complex the nickel is in the zero oxidation state.A carbamate or a urea, respectively, are obtained by a subsequent reaction with a hydroxy compound or a primary or secondary amine.Isocyanates and their derivatives are used especially either as refined synthesis agents for the production of pesticides and medications, or as monomers or comonomers for the preparation of many macromolecular compounds.

Abstract: A process for preparing urethanes by reacting a solution of a nitrogen-containing organic compound and a hydroxyl-containing organic compound with carbon monoxide in the presence of a catalyst comprising rhodium, as a metal or compound, is disclosed. In the process of this invention, the rate of conversion and selectivity to urethane is increased by providing a rhodium catalyst comprising a polyamino ligand having at least two tertiary amino groups capable of coordinating with rhodium.

Abstract: Molecular structures of .beta.-adrenergic antagonists are modified to produce biologically active compounds. The .beta.-antagonists are modified to form molecules of the general structure: ##STR1## wherein R is most generally R"--OCH.sub.2 --, and in some instances is R"--, and R"=an aryl or substituted aryl moiety; R'=--H, --CH.sub.3, or a short chain alkyl moiety; and Y=--OH, or more usually, --OAX or --NHAX, where A=an alkyl, aryl, or aralkyl moiety, and X=a terminal grouping, such as --CH.sub.3, --CF.sub.3 or --(CH.sub.2).sub.n COOH; or AX may be a carrier moiety consisting of a defined peptide or protein.

Abstract: Compounds having the formula: ##STR1## are antagonists of leukotrienes of C.sub.4, D.sub.4 and E.sub.4, the slow reacting substance of anaphylaxis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory and cytoprotective agents.

Abstract: The present invention relates to a method of manufacturing aromatic urethane, an aromatic mononitro-compound, an aromatic primary amine, and carbon monoxide being reacted using a catalyst containing a platinum group metal-containing compound as a major constituent to prepare N,N'-di-substituted urea. The resultant N,N'-di-substituted urea is reacted with a hydroxyl group-containing organic compound to prepare an aromatic primary amine and aromatic urethane, and the aromatic primary amine is separated to obtain aromatic urethane.

Abstract: This invention relates to a process for preparing urethanes by reacting a solution of a nitrogen-containing organic compound and a hydroxyl-containing organic compound with carbon monoxide in the presence of a ruthenium catalyst. The selectivity of this process is increased by the use of methanol instead of various other alkanols, e.g. ethanol. Preferably the catalyst is a halide-free ruthenium catalyst, e.g. a ruthenium carbonyl complex.

Abstract: A process for producing a urethane compound which comprises reacting at least one compound selected from the group consisting of a primary amine, a secondary amine and a urea compound with carbon monoxide and an organic hydroxyl compound in the presence of a catalyst system comprising:(a) at least one member selected from the group consisting of platinum group metals and compounds containing at least one platinum group element; and(b) at least one halogen-containing compound selected from the group consisting of alkali or alkaline earth metal halides, onium halides, compounds capable of forming onium halides in the reaction, oxo acids of halogen atoms and their salts, complex compounds containing halogen ions, organic halides and halogen molecules,in the presence of molecular oxygen and/or an organic nitro compound as an oxidizing agent at a temperature of from about 80.degree. C. to about 300.degree. C. under a pressure of from about 1 Kg/cm.sup.2 to about 500 Kg/cm.sup.2.

Abstract: Allophanate derivatives of the formula ##STR1## in which R.sup.1 and R.sup.2 can be identical or different and represent an aliphatic, cycloaliphatic, araliphatic or aromatic radical each of which is optionally monosubstituted or polysubstituted by identical or different substituents andR.sup.3 represents the radical --XR.sup.4 or --NR.sup.5 R.sup.6,whereinR.sup.4 represents alkyl, alkoxyalkyl, or aryl which is optionally monosubstituted or polysubstituted by identical or different substituents, X represents oxygen or sulphur andR.sup.5 and R.sup.6 are identical or different and represent hydrogen, alkyl, or aryl which is optionally monosubstituted or polysubstituted by identical or different substituents, orR.sup.5 and R.sup.6, together with the nitrogen atom on which they stand, form a saturated heterocyclic radical which is optionally monosubstituted or polysubstituted by identical or different substituents and can be interrupted by further hetero-atoms,which possess fungicidal activity.

Abstract: This invention relates to a process for preparing urethanes by reacting a solution of a nitrogen-containing organic compound and a hydroxyl-containing organic compound with carbon monoxide in the presence of a ruthenium catalyst comprising a bis phosphine ligand.

Abstract: A process for preparing urethanes by reacting a solution of a nitrogen-containing organic compound and a hydroxyl-containing organic compound with carbon monoxide in the presence of a halide-free ruthenium catalyst is disclosed. In the process of this invention, the rate of conversion and selectivity to urethane is increased by providing a primary amine in the reaction solution.

Abstract: Urethanes are made by reacting an organic nitro compound with an organic compound containing at least one hydroxyl group in the presence of carbon monoxide, hydrogen and a catalyst system. The carbon monoxide and hydrogen are used in quantities such that the molar ratio of CO to H.sub.2 is from 0.3:1 to 3:1. The catalyst system is made up of at least one noble metal or compound of a noble metal from Group VIIIB of the Periodic System of Elements, at least one organic nitrogen base and a co-catalyst combination of iron or copper oxidic or hydroxidic compound and a chloride compound. The product urethanes are useful in the production of isocyanates and pesticides.

Abstract: The invention relates to new carbazic acid derivatives, a process for the preparation thereof and compositions--particularly feed additives and animal feeds--containing the same.The new compounds according to the invention correspond to the formula (I)R.sup.1 .dbd.N--NH--COOR.sup.3 (I)whereinR.sup.1 stands for a C.sub.7-12 cycloalkylidene group, an indanylidene group or a group of the formula (IX) ##STR1## wherein A represents a phenyl group optionally carrying one or more identical or different substituents selected from the group consisting of halo nitro, hydroxy, C.sub.1-14 alkoxy, C.sub.1-4 alkyl, amino or C.sub.1-4 alkoxycarbonylhydrazino; phenyl-(C.sub.1-4 alkyl), C.sub.1-16 alkyl, C.sub.3-7 cycloalkyl or indolyl or a C.sub.3 -C.sub.6 cycloalkyl group substituted by a C.sub.3 -C.sub.6 cycloalkyl group;R.sup.2 denotes a hydrogen atom, a C.sub.1-16 alkyl or a C.sub.3-7 cycloalkyl group; andR.sup.3 represents a C.sub.1-4 alkyl group.

Abstract: Aniline derivatives of the formula ##STR1## where R.sup.1 is alkoxy, alkylthio, unsubstituted or substituted cycloalkoxy or the radical --NR.sup.2 R.sup.3, X is --CH.sub.2 --, --CH(OH)-- or --CO--, A is an unsubstituted or substituted alkylene chain, B is unsubstituted or substituted methylene or dimethylene, Z is hydrogen, halogen, alkyl, alkoxy, haloalkyl or haloalkoxy, and n is 1, 2 or 3, are used for controlling undesirable plant growth.

Abstract: Production of tertiary aralkyl urethanes, such as tetramethyl xylylene diurethanes, by addition of corresponding diols and carbamic acid esters at moderate temperatures and in the presence of acid catalyst.

Abstract: N-acyl-acyloxy aromatic amines, e.g. 4-acetoxyacetanilide (AAA), are prepared by reacting a hydroxy aromatic ketone, e.g. 4-hydroxyacetophenone, with hydroxylamine or a hydroxylamine salt and a base to obtain the ketoxime of the ketone, e.g. 4-hydroxyacetophenone oxime, and then subjecting the ketoxime to a Beckmann rearrangement and accompanying acylation by contacting the ketoxime with a carboxylic acid anhydride and a Beckmann rearrangement catalyst to form the N-acyl-acyloxy aromatic amine.

Abstract: N-substituted 2-methylnaphthylamides of the general formula I ##STR1## where R is an unsubstituted or substituted furyl, isoxazolyl, oxazolyl, isothiazolyl, thiazolyl, 1,2,4-oxadiazol-3-yl, 1,2,4-thiadiazol-3-yl, 1,2,4-thiadiazol-5-yl, 1,2,5-thiadiazol-3-yl, 1,3,4-thiadiazol-2-yl or C.sub.1 -C.sub.5 -alkyl radical, or the group --CH.sub.2 --Y--R.sup.1, where Y is oxygen or sulfur and R.sup.1 is C.sub.1 -C.sub.6 -alkoxyethyl or C.sub.1 -C.sub.6 -alkoxyethoxyethyl, or R is C.sub.2 -C.sub.5 -alkenyl, C.sub.2 -C.sub.5 -alkynyl, C.sub.1 -C.sub.5 -alkoxy, C.sub.1 -C.sub.5 -alkoxycarbonyl or C.sub.3 -C.sub.7 -cycloalkyl, and fungicides containing these compounds.

Abstract: Aniline derivatives of the formula ##STR1## where R.sup.1, Y, A, Z and n have the meanings given in the description, are used for controlling undesirable plant growth.

Abstract: A new color-forming 4-(4'-secondary or tertiary-amino)anilino-1-carboxamidonaphthalene dye precursor in a photographic material and process enables formation of a dye image by means of cross-oxidation without the need for a coupling reaction. The color-forming 4-(4'-secondary or tertiary-amino)anilino-1-carboxamidonaphthalene dye precursor is useful in a photographic silver halide material for producing (i) a dye image, or (ii) a dye image and silver image. The exposed photographic material is processed to produce (a) a positive dye image, (b) a negative dye and negative silver image, (c) a negative dye image or (d) a positive dye image and a positive silver image. New naphthoquinoneimide dyes are also described.

Abstract: The present invention consists of derivatives of colchicine and thiocolchicine which are carbamates of the same and are illustrated by the formula below: ##STR1## where either X.sub.1 or X.sub.2 is a hydroxy group and the other a lower alkoxy group and R.sub.1 can be H or an alkyl, R.sub.2 an alkyl, alkenyl or aryl which may be substituted and R.sub.3 is either OCH.sub.3 or SCH.sub.3 ; alkyl and alkoxy=C.sub.1 -C.sub.6 ; aryl=monoaryl.These compounds are not only new but have exhibited antitumor activity binding to tubulin protein and tests against P388 lymphocytic leukemia and also active against gouty arthritis. Further, they are far less toxic than colchicine.

Abstract: Amino ketone enantiomers and their direct preparation are disclosed. The ketone may be reduced to yield carbinol enantiomer which has pharmaceutical activity.

Abstract: A novel enantiomeric synthesis from ascorbic acid of (3S,4S)-3-amino-4-carbamoyloxymethyl-2-azetidinone-1-sulfate, an intermediate for an antibiotic compound.

Abstract: A manufacturing method is described for the preparation of optically active 1-(6-methoxy-2-naphthyl)-2-(alkoxycarbonyl)amino-1-propanone, its derivatives and their halo analogs. The optically active 1-(6-methoxy-2-naphthyl)-2-(alkoxycarbonyl)amino-1-propanone, its derivatives and their halo analogs are useful intermediates in the preparation of 2-(6-methoxy-2-naphthyl)propionic acid, which is useful as pharmaceutical, e.g. antiinflammatory, analgesic and anti-pyretic agents.

Abstract: A process for producing urethanes by reacting aromatic amino compounds with aliphatic, cycloaliphatic or araliphatic alcohols and carbon monoxide under conditions of elevated temperature and pressure characterized in that the reaction takes place in the presence of(a) selenium, selenium compounds, sulfur and/or sulfur compounds,(b) aromatic nitro compounds,(c) tertiary organic amines and/or alkali metal salts of weak acids,(d) oxidizing agents of a specified group and, optionally(e) ammonia and/or aliphatic, araliphatic, cycloaliphatic or heterocyclic amines containing at least one hydrogen atom bound to an amine nitrogen.

Abstract: Novel compounds of the following general formula: ##STR1##

Abstract: This invention is directed to novel antimicrobial agents. More particularly, this invention is directed to 2-(3-iodo-2-propynyloxy)-ethyl carbamates of the formula ##STR1## wherein R is hydrogen, linear or branched alkyl of from 1 to 12 carbon atoms, cycloalkyl of from 4 to 8 carbon atoms, aryl, substituted aryl, aralkyl, or arylsulfonyl;R.sup.1 and R.sup.2, which may be the same or different, each are hydrogen, linear or branched alkyl or alkenyl of from 1 to 6 carbon atoms, or cycloalkyl of from 5 to 7 carbon atoms, or R.sup.1 and R.sup.2, taken together, represent --(CH.sub.2).sub.m --, in which m is an integer of from 4 to 6; andR.sup.3, R.sup.4, R.sup.5, and R.sup.6, which may be the same or different, each represent hydrogen, alkyl of from 1 to 4 carbon atoms, or aryl, or CCl.sub.3, or R.sup.3 and R.sup.5 or R.sup.4 and R.sup.6, taken together, represent --(CH.sub.2).sub.n --, in which n is an integer of from 3 to 5,as well as a process for their preparation and their use as antimicrobial agents.

Abstract: Sulfonyl or carbonyl derivatives of inositols are found to be effective phospholipase C inhibitors and thereby potent anti-inflammatory and analgesic agents. These inositol derivatives are prepared by condensation of a protected inositol with a substituted sulfonic or carboxylic acid derivative followed by removal of protecting groups.

Abstract: Production of tertiary aralkyl isocyanates, such as tetramethyl xylylene diisocyanates, by thermal cracking of corresponding urethanes formed by addition of corresponding olefins and carbamic acid esters at moderate temperatures and in the presence of acid catalyst.

Abstract: A process for the preparation of N,O-disubstituted urethanes. Urea or polyurets, primary amines and alcohols are reacted at 120.degree.-350.degree. C. in the presence of N-substituted urethanes and/or N-mono- or N,N'-disubstituted ureas or polyureas. In a preferred embodiment, the reactants further include catalysts known to be useful in esterification of carboxylic acids. The urethanes produced in accordance with this process are particularly useful as starting materials for preparation of isocyanates.

Abstract: Novel bicyclooxyphenyl ureas, such as 1-(bicyclooxyphenyl)-benzoyl ureas, are provided which exhibit pesticidal activity. The compositions are conveniently prepared by reacting an isocyanate with either an amide or a bicyclooxyaniline.

Abstract: An improved process for the preparation of N-monosubstituted carbamates by reacting an aromatic primary amine, urea and a monohydric aliphatic alcohol in the presence of a strongly basic tertiary amine catalyst and optionally an inert solvent.

Abstract: A process for the preparation of aromatic urethans by reaction between aromatic amines and alkyl carbonates, said reaction being carried out in the presence of a catalyst composed of an alcoholate of an alkali metal or an alkaline earth metal. The reaction is caused to take place at a temperature which is variable from +50.degree. C. and +150.degree. C., in the liquid phase and with a molar ratio of the carbonate to the amine of from 10:1 to 1:10.

Abstract: A process for the preparation of N,O-disubstituted urethanes. Primary amines and alcohols are reacted with organic compounds having carbonyl groups at 120.degree. to 350.degree. C. Suitable carbonyl-containing compounds include N-unsubstituted urethanes. N-mono-substituted, N,N'-disubstituted ureas, or polyureas may be used in combination with the N-unsubstituted urethane. The product urethanes are particularly suitable for the preparation of isocyanates.

Abstract: A process for the preparation of N-monosubstituted carbamic acid esters by reacting an unsubstituted carbamic acid ester and an aromatic primary amine at a suitable pressure and reaction temperature in the presence of a monohydric aliphatic alcohol and preferably in the presence of a strongly basic tertiary amine as catalyst. Optionally an inert co-solvent in addition to the alcohol may be employed.

Abstract: The novel acylated guanidines, ureas and substituted ureas correspond to the general formula: ##STR1## in which R.sub.1 repesents a substituted or unsubstituted aromatic ring, R.sub.2 represents an alkyl, aryl, or arylalkyl group, R.sub.4 repesents hydrogen or a variously substituted aryl group, X is oxygen or an imine group: NH and Y represent an alkyl aryl alkyloxy or aryloxy group or a hydrogen atom when X represents oxygen or the group COR.sub.3 with R.sub.3 representing an aromatic group, an aryloxy, aralkyloxy or alkyloxy group when X represents the NH group. They are prepared by heating an appropriate compound under reflux with an oxyaminoalcohol, in a suitable solvent. The products are useful as medicaments for the treatment of arterial hypertension, ischemica diseases of the heart and rhythmic disorders of the latter.

Abstract: A process for the preparation of an aryl mono-, di-, and/or polyurethane comprising the steps of A. reacting a primary aromatic mono-, di-, and/or polyamine with an O-alkyl carbamate in the presence of an alcohol at temperatures greater than 160.degree. C., andB. separating the ammonia and other by-products from the aryl mono-, di-, and/or polyurethane.The reaction is preferably carried out in the presence of urea. The aryl mono-, di-, and/or polyurethanes produced are valuable end and intermediate products. They can be transferred into the corresponding isocyanates which can then be used for the preparation of polyurethanes.

Abstract: New m-anilide-urethanes, processes for their manufacture, herbicides containing these compounds, and processes for controlling unwanted plant growth with these compounds.

Abstract: Dimethacrylates are provided having the following chemical structure: ##STR1## where ##STR2##is a saturated, 6 membered, monocyclic, hydrocarbyl ring system;R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen or alkyl or alkoxy groups having 1 to 12 carbon atoms; andR.sub.4 and R.sub.5 are the same or different and are hydrogen or groups of the formula: ##STR3## where R.sub.6 is an aliphatic, aromatic or cycloaliphatic group having 1 to 14 carbon atoms, provided that at least one of the groups R.sub.4 and R.sub.5 is a group of the formula: ##STR4## These compounds are useful in dental material which cures to form polymers having high mechanical strength, low water sorption, resistance to staining, good color stability when exposed to short-wave radiation (e.g., sunlight) and good chemical resistance to the oral environment. Also provided are a method for polymerizing this compound in situ on teeth and a tooth comprising a polymer of this compound.

Abstract: Antihistamines of the formula ##STR1## wherein ##STR2## is a 5 or 6 membered ring which is phenyl or heterocyclic; ##STR3## is a six membered ring which is 2,3 or 4 pyridyl or is phenyl or substituted phenyl, with the proviso that is ##STR4## is a nitrogen containing ring, ##STR5## must be phenyl; Z is an alkylene chain having 0 to 2 carbon atoms in the chain, said 2 carbon chain optionally having one double bond, said chain optionally having either a carbonyl oxygen, or a hydroxy group as a substituent; W is ##STR6## wherein p is 1 or 2 and n is 1 or 2, R.sup.1 is C.sub.1 to C.sub.6 alkyl, R.sup.2 is hydrogen or C.sub.1 to C.sub.6 alkyl, and the dotted line represents an optical double bond, R.sup.2 being absent if the double bond is present, and Y is substituted carboxylate or substituted sulfonyl. Said antihistamines have little or no sedative effects.

Abstract: A process for the simultaneous preparation of an aromatic sulphonic acid halide and an aromatic carboxylic acid halide or the corresponding carboxylic acid is disclosed wherein an aromatic sulphonic acid or acid anhydride is reacted with an aromatic trihalogenomethyl compound in the presence of a Bronsted acid or Lewis acid at a temperature of 20.degree. to 300.degree. C., if appropriate in the presence of a solvent. Generally, at least half an equivalent of aromatic trihalogenomethyl compound is employed per equivalent of sulphonic acid.

Abstract: The invention concerns a new process for the preparation of polyhalogenphenyl carbamates of the formula (I)R.sup.2 -OCONHR.sup.1 (I)whereinR.sup.1 is alkyl, aralkyl or aryl, where the aromatic rings may optionally be substituted; andR.sup.2 is phenyl substituted with three, four or five halogens, through intermediates of the formula (IV)(R.sup.2 --O).sub.2 C.dbd.NR.sup.1 (IV)wherein R.sup.1 and R.sup.2 are as defined above.The compounds of the formula (I) are valuable acylating agents. The intermediates of the formula (IV) are new compounds, which are also encompassed by the invention.