CAS: 74866-28-7; 2,2-Dibromo-1,1-Binaphthyl

上下游产品

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专利信息

专利号:US-5159093-A
优先权日:1990-10-01
标题 :Iridium-optically active phosphine complex and process for producing optically active alcohols using the same
发明人：TAKETOMI TAKANAO; AKUTAGAWA SUSUMU; KUMOBAYASHI HIDENORI; TAKAYA HIDEMASA; MASHIMA KAZUSHI
权利人:TAKASAGO PERFUMERY CO LTD
摘要:An iridium-optically active phosphine complex represented by formula (I): n n [H.sub.2 Ir(L.sup.1)(L.sup.2)]Y (I) n n wherein L 1 represents an optically active phosphine compound represented by formula (II): ##STR1## wherein Ar represents a phenyl group or a p- and/or m-lower alkyl-substituted phenyl group, or formula (III): ##STR2## L 2 represents a tertiary phosphine compound represented by formula (IV): ##STR3## wherein Z represents a lower alkoxy group or a di-lower alkylamino group; and A represents an integer of from 1 to 3; Y represents BF 4 , PF 6 , ClO 4 , or BPh 4 , wherein Ph represents a phenyl group, and a process for producing an optically active alcohol using the above complex as an enantioselective catalyst are disclosed. The complex exhibits excellent catalytic activity to give high enantioselective yields in enantioselective synthesis, particularly enantioselective hydrogenation.

专利号:US-5012002-A
优先权日:1989-06-16
标 题 :2,2'-bis(di-(m-tolyl)phosphino)-1,1'-binaphthyl
发明人：KUMOBAYASHI HIDENORI; TAKETOMI TAKANAO
权利人:TAKASAGO PERFUMERY CO LTD
摘要:2,2'-Bis[di-(m-tolyl)phosphino]-1,1'-binaphthyl represented by formula (I) is disclosed. ##STR1## The compound of formula (I) is capable of forming a complex with a metal, e.g., ruthenium, rhodium, and palladium, which is extremely important and industrially excellent as a catalyst for various asymmetric synthesis reactions.

专利号:US-5210332-A
优先权日:1990-10-01
标题:Iridium-optically active phosphine complex and process for producing optically active alcohols using the same
发明人：TAKETOMI TAKANAO; AKUTAGAWA SUSUMU; KUMOBAYASHI HIDENORI; TAKAYA HIDEMASA; MASHIMA KAZUSHI
权利人:TAKASAGO PERFUMERY CO LTD
摘要:An iridium-optically active phosphine complex represented by formula (I): n n [H.sub.2 Ir(L.sup.1)(L.sup.2)]Y (I) n n wherein L 1 represents an optically active phosphine compound represented by formula (II): ##STR1## wherein Ar represents a phenyl group or a p- and/or m-lower alkyl-substituted phenyl group, or formula (III): ##STR2## L 2 represents a tertiary phosphine compound represented by formula (IV): ##STR3## wherein Z represents a lower alkoxy group or a di-lower alkylamino group; and A represents an integer of from 1 to 3; Y represents BF 4 , PF 6 , ClO 4 , or BPh 4 , wherein Ph represents a phenyl group, n and a process for producing an optically active alcohol using the above complex as an enantioselective catalyst are disclosed. The complex exhibits excellent catalytic activity to give high enantioselective yields in enantioselective synthesis, particularly enantioselective hydrogenation.

专利号:CN-119823165-A
优先权日:2025-01-08
标 题:Dinaphthosilole compounds, synthesis methods and applications in fluorescence detection of nitroaromatic compounds

专利号:CN-118271216-A
优先权日:2024-03-29
标题:Synthesis method of 2,2' -dithio (seleno) biaryl derivative