Patents for C07B 45 - Formation or introduction of functional groups containing sulfur (608) |
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12/21/1994 | EP0629188A1 Regioselective sulphonylation of substituted aromatic compounds. |
12/07/1994 | CN1096024A Catalytic oxidation process |
09/15/1994 | WO1994020207A1 Exothermic process with porous means to control reaction rate and exothermic heat |
09/15/1994 | CA2157408A1 Exothermic process with porous means to control reaction rate and exothermic heat |
09/06/1994 | US5344939 Esterification |
08/24/1994 | CN1025735C Process for preparing isothiocyanato functionalized metal complexes |
07/21/1994 | WO1994015927A1 Catalytic oxidation process |
07/21/1994 | CA2150388A1 Catalytic oxidation process |
06/09/1994 | WO1994012450A1 Method of preparing sulfur-containing compounds |
05/17/1994 | CA1329615C Process for the preparation of compounds with antiulcer action |
03/23/1994 | EP0587774A1 Sulfonation process for viscous sulfonic acid |
03/03/1994 | WO1994004490A1 Process for preparation of sulphonates |
02/23/1994 | EP0583429A1 Highly reactive form of copper and reagents thereof |
02/01/1994 | US5283337 Process for the preparation of perhaloalkylthioethers |
01/12/1994 | EP0299034B1 Process for the preparation of compounds with antiulcer action |
12/09/1993 | WO1993024263A1 Highly reactive zerovalent metals from metalcyanides adapted for preparation of organometallic compounds |
11/24/1993 | EP0570844A1 Multitube falling-film reactor |
10/14/1993 | DE4212086A1 Producing alkane sulphonate(s) in a continuous process - by nano-filtration of the lower phase followed by saponification, to increase yield and reduce the COD of waste water |
09/16/1993 | WO1993018000A1 Regioselective sulphonylation of substituted aromatic compounds |
09/04/1993 | WO1993017992A1 Sulfonation process for viscous sulfonic acid |
08/03/1993 | US5233081 Method for sulfonation using porous absorber material |
06/29/1993 | CA1319698C2 3-alkoxy-4-thioacetoxy-2e-butenoic acid alkyl esters |
05/06/1993 | DE4135728A1 Sulphur tri:oxide prepn. used for sulphonation reactions - by reaction of sulphite with halogen in presence of water |
03/23/1993 | CA1314890C Process for the preparation of benzoin sulfonates |
03/10/1993 | EP0530454A1 Process for the preparation of alkylphenyl alkyl ethers of alkylphenyl alkyl thioethers |
02/23/1993 | US5189165 Process for the preparation of 1,1-disubstituted cyclopropane derivatives |
01/27/1993 | EP0524813A1 Selective thioketalization process, process for preparing thioenol ethers from thioketals, and process for the preparation of thioketals |
01/26/1993 | CA2074430A1 Selective thioketalization process, process for preparing thioenol ethers from thioketals, and process for the preparation of thioketals |
12/29/1992 | US5175302 Nucleophilic fluoroalkylation of aldehydes |
12/02/1992 | EP0377634B1 Process for the preparation of aryl sulfides |
11/17/1992 | US5164527 Zeolite catalysts |
11/12/1992 | WO1992019623A1 Highly reactive form of copper and reagents thereof |
09/30/1992 | EP0505582A1 Sulfonating agent and process |
08/04/1992 | US5136088 Sulfonation process for viscous sulfonic acid |
06/30/1992 | CA1304386C Process for the production of 4-alkoxy-2(5h) thiophenones |
06/02/1992 | US5118813 Process for the preparation of compounds with antiulcer action |
05/26/1992 | US5117064 Selective |
05/05/1992 | CA1300176C Process for the preparation of aryl sulfides |
04/30/1992 | WO1992006935A1 Sulfonating agent and process |
04/30/1992 | DE4033720A1 Protecting hydroxy gps. in polyfunctional cpds. - using allyl:sulphonyl gp. as blocking gp. |
03/31/1992 | US5101068 Monofluoromethylation of organic compounds, reaction with amino acids |
03/24/1992 | CA1297887C Sulfited fats |
03/24/1992 | CA1297886C Process for the sulfation of partial esters of aliphatic polyhydric alcohols |
01/21/1992 | US5082945 Process for the preparation of perhaloalkylthioethers |
01/15/1992 | EP0466319A1 Hydroxyalkylation of phenols or thiophenols with cyclic organic carbonates using triorganophosphine catalysts |
11/27/1991 | EP0458684A1 Reagent and process for the perfluoroalkylation of nucleophilic substrates by sodium perfluoroalkanesulfinates in an oxidising medium |
11/26/1991 | US5068369 Enantiomorphs |
11/06/1991 | EP0455332A2 Acylation or sulphonylation of aromatic compounds |
11/05/1991 | US5062997 Of unsaturated fatty acids or esters |
10/22/1991 | US5059723 Efficiency; purity |
09/03/1991 | US5045159 Derivatives of compounds containing a carbonyl group conjugated to an aromatic moiety and electrophilic methods of fabrication thereof |
08/21/1991 | EP0442754A2 Reagents and methods for stereospecific fluoromethylation |
07/03/1991 | EP0435151A2 Process for the preparation of 1,1-disubstituted cyclopropane derivatives |
06/04/1991 | CA1284661C Reduction of organic sulfur compounds |
05/14/1991 | US5015775 Reaction of an alkylsulfonic acid with an aromatic compound and a phosphorous reagent |
05/14/1991 | US5015770 Sulfiding an aromatic amine with a hydrocarbyl disulfide in the presence of iodine |
04/16/1991 | US5008432 Production of mercapto compounds |
03/20/1991 | CN1050021A Synthetic process of diterpenic lactone |
02/05/1991 | US4990676 Reacting single enantiomer of chiral complex with carbanion |
02/05/1991 | US4990288 Transesterification of sulfonated fatty acid alkyl ester before salt formation |
01/23/1991 | EP0409003A2 Derivatives of compounds containing a carbonyl group conjugated to an aromatic moiety and electrophilic methods of fabrication thereof |
12/25/1990 | US4980510 Reacting a substituted halobenzene with sodium hydrosulfide or sodium sulfide and acidification |
11/27/1990 | US4973686 Controlling reactivity of sulfur trioxide by adding an aliphatic ester |
11/13/1990 | CA1276173C Sulphur compound production |
09/05/1990 | EP0385874A1 Functionalisation at position (n+1) of aryl derivatives disubstituted at position n and (n+2) |
09/03/1990 | CA2011348A1 Process for functionalizing n and (n+2) disubstituted arylic derivatives in the (n+ 1) position |
08/14/1990 | US4948535 Process for the sulfation of partial esters of aliphatic polyhydric alcohols |
08/08/1990 | CN1044461A Process for preparing isothiocyanato functionalized metal complexes |
07/18/1990 | EP0377634A1 Process for the preparation of aryl sulfides. |
07/18/1990 | EP0377625A1 Preparation of derivatives |
07/12/1990 | WO1990007342A1 Process for preparing isothiocyanato functionalized metal complexes |
07/04/1990 | CN1043499A Process for preparing perhaloalkylthioethers |
06/27/1990 | EP0374947A1 Process for preparing isothiocyanato functionalized metal complexes |
06/20/1990 | EP0374061A1 Process for the preparation of perhalogen alkyl thio ethers |
06/19/1990 | US4935514 Thiation process |
06/05/1990 | US4931570 Process for the production of 4-alkoxy-2(5H) thiophenones |
05/02/1990 | EP0261668B1 Process for the preparation of 4-alkoxy-2(5h) thiophenones |
03/06/1990 | US4906765 Process for the production of 4-alkoxy-2(5H) thiophenones |
03/06/1990 | US4906759 Process for the production of 4-alkoxy-2(5H) thiophenones |
02/27/1990 | US4903362 Sulfited fats as oiling agents for leather and skins |
11/21/1989 | CA1263123A1 CONTROL OF DISALT IN .alpha.-SULFOFATTY ACID ESTER SURFACTANTS |
10/18/1989 | EP0337063A1 Alkyl aryl sulfones and method of preparing the same |
10/11/1989 | EP0336538A1 Process for preparing chiral sulphoxides |
10/10/1989 | US4873351 Reacting antimony trioxide with organic mercaptan in the presence of a lower aliphatic carboxylic acid |
09/26/1989 | CA1261536A1 Aromatic polymers |
09/06/1989 | EP0226635B1 Method for neutralization of organophilic acidic compounds |
08/22/1989 | US4859372 In presence of hydrogen halide |
08/15/1989 | US4857645 Process for introducing a thiocarboxylic ester group at the orthoposition of phenols or phenylamines |
06/15/1989 | WO1989005291A1 Enantioselective preparation of substituted aminothiophenol derivatives |
06/06/1989 | US4837364 Processes for preparing pentafluoroethoxy- and pentafluoroethylthiobenzene drivatives |
06/06/1989 | US4837350 Process for the preparation of benzoin sulfonates |
06/06/1989 | US4837327 Process for nucleophilic fluoroalkylation of aldehydes |
05/09/1989 | CA1253669A1 Generation of sulphur trioxide from oleum |
04/18/1989 | US4822918 Reduction of organic sulfur compounds |
03/09/1989 | WO1989001931A1 Preparation of derivatives |
03/08/1989 | EP0305924A2 Process for the sulfonation and/or sulfatation of organic compounds with S03 in an organic reaction medium |
02/23/1989 | WO1989001463A1 Process for the preparation of aryl sulfides |
02/15/1989 | CN1031083A Process for preparing compounds with antiulcer action |
02/08/1989 | EP0302321A2 Process for the preparation of thiophenols, and these thiophenols |
01/24/1989 | US4800045 Oxidation and reaction with gtoup 1 metal or ammonium bisulfites or sulfites; low iodine number; diling leather and skins |