Patents
Patents for C07C 319 - Preparation of thiols, sulfides, hydropolysulfides or polysulfides (8,304)
07/1990
07/18/1990EP0378463A1 Process for the desallylation of N-allylanilines and N,N-diallylanilines with metals
07/18/1990EP0377634A1 Process for the preparation of aryl sulfides.
07/18/1990EP0377625A1 Preparation of derivatives
07/12/1990CA2007570A1 Process for deallylating n-allylanilines and n-n-diallylanilines using metals
07/10/1990US4940812 5-substituted aminophenols
07/04/1990CN1043499A Process for preparing perhaloalkylthioethers
07/03/1990US4939302 Using acid ion exchange resin catalyst
07/03/1990US4939295 Process for the preparation of intermediates for the synthesis of diltiazem
07/03/1990US4939291 Process for the preparation of mercaptoethansulfonic acid and sodium salt thereof
07/03/1990US4939172 Novel cyclopropane carboxylates
06/1990
06/27/1990EP0374497A1 Polybutanediol(1,4)w,w'bismercaptans and their preparation
06/26/1990US4937385 Process for the manufacture of dialkyl disulfides and polysulfides
06/20/1990EP0374061A1 Process for the preparation of perhalogen alkyl thio ethers
06/20/1990CN1008441B Method for eliminating reentry disulfides in mercaptan extraction
06/13/1990CN1042897A Alkylation of polycyclic aromatic compounds to alkylates enriched in para-substituted isomers
06/12/1990US4933481 Synthesis of organic polysulphides
06/12/1990CA1270263A1 Purification of (hydrocarbylthio) aromatic amines
06/06/1990EP0371508A1 Phenoxy and phenylthio, amino substituted benzocycloalkane derivatives in the treatment and prevention of drug-resistant protozoal infections
06/05/1990US4931587 Process for the optical resolution of a racemic acid
06/05/1990US4931579 Indicators for the detection of thiol groups
06/05/1990CA1269995A1 Process for the preparation of liquid 2-hydroxy- methylthiobutyric acid
05/1990
05/31/1990WO1990005718A1 Preparation on ortho-(alkyl- or arylthio)phenols
05/30/1990EP0370446A2 Curable epoxy resin compositions containing polyalkylene dithiols and polyamines
05/30/1990EP0370445A2 Polytetrahydrofurandithiols and their use
05/30/1990EP0370357A1 Process for producing 3-iminonitriles
05/29/1990US4929772 Process for preparing polyhalogenated carbinols
05/29/1990CA1269665A1 Amine dealkylation process
05/23/1990EP0369728A1 Haloalkylation of aromatic compounds
05/23/1990EP0369074A1 Preparation of ortho-(alkyl-or arylthio) phenols
05/23/1990EP0329521B1 Process for the preparation of tertiary mercaptans from homopolymers of isobutene
05/23/1990EP0188484B1 Procedure for producing stearyl-beta-(3,5-dibutyl-4-hydroxyphenyl)propionate and bis-(beta(3,5-dibutyl-4-hydroxybenzyl)-methyl-carboxyethyl)sulphide
05/23/1990CA2003425A1 Polytetrahydrofuran-dithiols and their use
05/22/1990US4927972 Reacting with hydrogen sulfide in the presence of an acid catalyst
05/22/1990US4927541 Process for refining amino acids
05/16/1990EP0368697A1 2-Methyl-5-t-butyl thiophenol, its preparation and use
05/16/1990EP0368287A1 Process for preparing hydroxylated amines
05/14/1990CA2000958A1 Haloalkylation of aromatic compounds
05/10/1990CA2001801A1 Process for preparing hydroxylated amines
05/09/1990EP0367508A1 Mercaptoalkyl acetoacetates, use thereof and a process for the preparation of mercaptoalkyl acetoacetates
05/09/1990EP0367033A1 S-Difluoromethylhomocysteines, preparation process, and insecticidal compositions
05/08/1990US4923643 Antimony mercaptide esters and methods of preparing the same
05/03/1990WO1990004580A1 Aryloxyaldehydes and their manufacture
05/02/1990CN1041738A Process for preparing sulfur solvent compositions
05/01/1990US4922014 Process for the preparation of oxethylmercaptobenzaldehydes and their oxidation products
05/01/1990CA1268480A1 Dithiol synthesis
04/1990
04/25/1990EP0364703A2 Process for preparing sulfur solvent compositions
04/24/1990US4920222 Reacting a benzophenone and an acetamide in presence of sodium tertiary alcoholate
04/24/1990US4920135 Nonphytotoxic, interfere with metamorphosis
04/21/1990CA2001151A1 Aryloxyaldehydes and their manufacture
04/17/1990US4918224 Acetylating with acetonitrile; basification to supply cation
04/17/1990US4918223 Method of preparing N-acylated mercapto-alpha-amino acids
04/17/1990US4918221 Process for preparing 2,5-dichlorophenylthioglycollic acid
04/11/1990EP0363263A1 Process for the preparation of propionic-acid derivatives
04/11/1990CN1041153A New prodn tech for cystine
04/10/1990US4916157 Acylated naphthylamines as plant fungicides
04/04/1990EP0361995A1 Process for the preparation of diarylsulfide or diarylselene compounds
04/04/1990EP0361790A1 Process for producing alkylthio or arylthiophenones
04/03/1990US4914244 Process for preparing difluorochloromethoxybenzenes
03/1990
03/28/1990EP0360633A1 Polysulphurised olefin composition, its preparation and its use as an additive in lubricants
03/28/1990EP0360351A1 Process for the preparation of cyclopentene, cyclopentane and cyclohexane derivatives
03/28/1990CN1007350B Process for degradation of alkyl polysulfide to polysulfide of low sulfur
03/27/1990US4912262 Reacting a cyclohexane-1,3,5-trione compound with a acylnitrile in presence of a base and Lewis acid
03/27/1990US4912257 Process for preparation of aqueous solutions of 2-hydroxy-4-methylthio butyric acid
03/27/1990US4912249 Esters of 3-tert-butyl or 3-tert-butyl-5-alkyl-4-hydroxylphenyl(alkane) carboxylic acids
03/20/1990CA1266950A1 Method and apparatus for multipolymer synthesis systems
03/14/1990EP0358574A1 Process for the preparation of adamantane-1 derivatives
03/14/1990EP0357610A1 Insecticidal cyclopropyl-substituted di(aryl) compounds.
03/14/1990EP0274934B1 Process for the preparation of mercaptoalcohols
03/13/1990US4908469 2-Hydroxy-propanoic acid acyclic alkyl esters for benzothiazepines
03/06/1990CA1266485A1 Trisubstituted benzoic acid intermediates
02/1990
02/28/1990EP0356366A1 A process for the preparation of N-sulfamyl-propionamidine derivatives
02/28/1990EP0356318A1 Process for the synthesis of organic polysulfides
02/28/1990EP0356137A2 Carbonates of 3-demethylthiocolchicine and N-acyl analogs
02/27/1990US4904661 Phenol derivatives
02/20/1990US4902835 Fluorinated butene derivatives and methods for their preparation
02/20/1990US4902826 Process for the preparation of 2-arylthiobenzoic acids
02/20/1990US4902436 Reacting mixture of phenol, dihydric alcohol and alkaline earth metal oxide (or hydroxide); distilling by-products; carboxylation;sulfurization
02/14/1990EP0354460A1 Process to produce organosulfur compounds
02/13/1990CA1265821A1 Process for the degradation of alkyl polysulfides into lower sulfur polysulfides
02/07/1990EP0353538A2 Process for the preparation of intermediates for the synthesis of diltiazem
02/06/1990US4898983 Preparation of aryl carbonyl compounds
02/06/1990US4898982 Preparation of diaryl ethers and diaryl sulfides
02/06/1990US4898981 Heteroatom containing perfluoroalkyl terminated neopentyl glycols and compositions therefrom
02/06/1990US4898980 Process for preparing dithiobisphenols
02/06/1990US4898977 Processes for the preparation of 5-amino-4-hydroxyvaleric acid derivatives
02/06/1990US4898973 Trisubstituted benzoic acid intermediates
01/1990
01/31/1990EP0352744A1 Process for preparing organothioalkanols
01/31/1990EP0352456A1 Process for the preparation of alpha, beta-unsaturated ketones
01/30/1990CA1265146A1 2-alkyl or aralkyl thio 1-cycloalkene 1-carboxamides and their sulfoxides; process for preparing the same and their use for synthesizing 4,5-tri and tetramethylene 4-isothiazolin-3-ones
01/25/1990WO1990000543A1 Aminoacetonitrile derivatives
01/24/1990EP0351954A1 Improved process for the preparation of dihalobenzene disulfone compounds
01/23/1990US4895952 Surfactants
01/23/1990CA1264763A1 Process for the preparation of diphenyl ethers
01/17/1990CN1038821A Low polymer obtained from polyethoxylated fatty amine, process of preparation and uses in improved surface characterestic of polymers thereof
01/10/1990CN1038639A Process for preparing optical naphthothiazepines
01/03/1990EP0349488A1 Process for preparing dithiobisphenols
01/03/1990EP0349380A1 Esters comprising a dithioacetal, their preparation and their use in the stabilization of organic compounds
01/02/1990US4891448 Acidic mordenite catalyst
01/02/1990US4891445 Synthesis of tertiary mercaptans from isobutylene homopolymers
12/1989
12/27/1989EP0348350A1 Heteroatom containing perfluoroalkyl terminated neopentyl glycols and polymers therefrom
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