CAS: 15521-77-4; Sodium Pyridine-3-Sulfonate

相似化合物

636-73-7 4808-69-9 4808-70-2

专利信息

专利号:US-5827794-A
优先权日:1994-02-22
标 题 :Supported highly-polar liquid phase chiral sulfonated binap catalyst for asymmetric synthesis of optically active compounds
发明人：DAVIS MARK E; WAN KAM TO
权利人:CALIFORNIA INST OF TECHN
摘要:The present invention relates to water soluble chiral sulfonated 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl and its use as organometallic catalysts for asymmetric synthesis of optically active compounds. Asymmetric reactions of the present invention include those reactions in which organometallic catalysts are commonly used. Such reactions include, but are not limited to, reduction and isomerization reactions on unsaturated substrates and carbon--carbon bond forming reactions. Examples of such reactions include, but are not limited to, hydrogenation, hydroboration, hydrosilylation, hydride reduction, hydroformylation, alkylation, allylic alkylation, arylation, alkenylation, epoxidation, hydrocyanation, disilylation, cyclization and isomerization reactions. n The catalysts of the present invention provide the advantage of functioning in the presence of water without loss in enantioselectivity relative to the nonsulfonated BINAP catalyst in an organic solvent. As a result, the catalysts of the present invention may be employed in water, water miscible solvents, in aqueous--organic two phase solvent systems and in supported aqueous phase catalysts in organic solvents without loss in enantioselectivity. Further, the catalysts of the present invention may also be effectively employed in highly polar solvents such as primary alcohols and ethylene glycol. n The present invention also relates to a method for conducting asymmetric reactions on prochiral unsaturated bonds contained within a compound using the water soluble chiral sulfonated 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl organometallic catalysts of the present invention.

专利号:EP-0746410-A4
优先权日:1994-02-22
标题:WATER-SOLUBLE CHIRAL SULPHONED BINAP CATALYST FOR THE ASYMMETRICAL SYNTHESIS OF OPTICALLY ACTIVE COMPOUNDS

专利号:WO-9522405-A1
优先权日:1994-02-22
标题 :Water-soluble chiral sulfonated binap catalyst for asymmetric synthesis of optically active compounds

专利号:EP-0746410-A1
优先权日:1994-02-22
标 题 :Water-soluble chiral sulfonated binap catalyst for asymmetric synthesis of optically active compounds

专利号:CN-115197155-B
优先权日:2022-07-25
标 题:A kind of 2-quinoxaline sulfonate compound and its synthesis method