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公开(公告)号:US5382697A
公开(公告)日:1995-01-17
申请号:US264275
申请日:1994-06-23
申请人: Albert L. Casalnuovo , Thomas Foo
发明人: Albert L. Casalnuovo , Thomas Foo
IPC分类号: B01J31/22 , C07B61/00 , C07C253/10 , C07C255/04 , C07F5/02 , C07E9/02
CPC分类号: C07F5/027
摘要: Preparation of triarylborane from catalyst residues containing nickel complexes with triarylborane by heating the complexes at reduced pressure, and recovering the triarylborane by condensation.
摘要翻译: 通过在减压下加热复合物,通过三芳基硼烷的镍络合物的催化剂残余物制备三芳基硼烷,并通过缩合回收三芳基硼烷。
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公开(公告)号:US5143873A
公开(公告)日:1992-09-01
申请号:US627992
申请日:1990-12-17
IPC分类号: B01J27/28 , B01J31/40 , B01J38/50 , C07C253/08
CPC分类号: B01J31/185 , B01J27/28 , B01J31/146 , B01J31/403 , B01J31/4053 , B01J38/50 , B01J2231/343 , B01J2531/847 , B01J27/26 , B01J31/121
摘要: This invention concerns the use of M[BR.sub.3 H].sub.y reagents for activating or regenerating deactivated or degraded Ni catalyst used in Ni-catalyzed alkene hydrocyanation processes in the presence of an organic phosphorus compound, where M is an electropositive ion excluding nickel, such as, but not limited to, the Group 1A cations, the Group IIA cations, the lanthanide cations and the quaternary ammoniums and R is an organic radical of up to 18 carbon atoms, and where y is equal to the net charge of the cation. The invention also concerns a process for activation or regeneration of Ni-catalysts using MH and a catalytic amount of BR.sub.3.
摘要翻译: 本发明涉及在存在有机磷化合物的情况下使用M [BR3H] y试剂来活化或再生用于Ni催化的烯烃氢化方法中的失活或降解的Ni催化剂,其中M是除镍之外的正电离子, 但不限于,1A族阳离子,IIA族阳离子,镧系元素阳离子和季铵,R是至多18个碳原子的有机基团,其中y等于阳离子的净电荷。 本发明还涉及使用MH和催化量的BR3来活化或再生Ni-催化剂的方法。
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公开(公告)号:US5484902A
公开(公告)日:1996-01-16
申请号:US201947
申请日:1994-02-25
IPC分类号: C07B53/00 , C07C255/33 , C07C255/37 , C07H11/00 , C07F15/04 , C07H11/04
CPC分类号: C07B53/00 , C07C255/33 , C07C255/37
摘要: A composition for the enantioselective hydrocyanation of aromatic vinyl compounds comprising zero valent nickel and a chiral, nonracemic, bidentate organophosphorus ligand. The preferred organophosphorus ligand species is phenyl 2,3-bis-O-(3,5-bis(tri-fluoromethyl)phenyl)phosphino-4,6,0-benzilidene-B-D-glucopy-anoside as shown below. ##STR1##
摘要翻译: 用于对映选择性氢氰化的芳族乙烯基化合物的组合物,其包含零价镍和手性,非水性,二齿有机磷配体。 优选的有机磷配体是苯基2,3-双-O-(3,5-双(三氟甲基)苯基)膦基-4,6.0-亚苄基-B-D-吡喃葡萄糖苷,如下所示。
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公开(公告)号:US5510470A
公开(公告)日:1996-04-23
申请号:US424674
申请日:1995-04-19
IPC分类号: C07B53/00 , C07C255/33 , C07C255/37 , C07H11/00 , C07F15/04 , C07H11/04
CPC分类号: C07B53/00 , C07C255/33 , C07C255/37
摘要: A chiral, bidentate organophosphorus ligand containing a dideoxysaccharide used along with zero valent nickel as a catalyst for enantioselective hydrocyanation. The preferred organophosphorus ligand species is phenyl 2,3-bis-O-(3,5-bis(trifluoromethyl)phenyl)phosphine-4,6-O-benzylidene-B-D-glucopyranoside.
摘要翻译: 含有二价镍的手性二齿有机磷配体与零价镍一起用作对映选择性氢氰化的催化剂。 优选的有机磷配体物质是苯基2,3-双-O-(3,5-双(三氟甲基)苯基)膦-4,6-O-亚苄基-B-D-吡喃葡萄糖苷。
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公开(公告)号:US5312957A
公开(公告)日:1994-05-17
申请号:US961593
申请日:1992-10-15
申请人: Albert L. Casalnuovo , Thaliyil V. Rajanbabu , Lawrence W. Gosser , Ronald J. McKinney , Nugent, Jr. William A.
发明人: Albert L. Casalnuovo , Thaliyil V. Rajanbabu , Lawrence W. Gosser , Ronald J. McKinney , Nugent, Jr. William A.
IPC分类号: C07B53/00 , C07C255/33 , C07C255/37
CPC分类号: C07B53/00 , C07C255/33 , C07C255/37
摘要: The invention provides a process for enantioselective hydrocyanation of aromatic vinyl compounds which produces nonracemic mixtures of chiral, arylpropionitriles; novel carbohydrate phosphorus and nickel catalyst compositions; and optically pure (S)-(-)-2-(6-methoxy-2-naphthalene)propionitrile.
摘要翻译: 本发明提供了芳族乙烯基化合物的对映选择性氢氰化方法,其产生手性芳基丙腈的非水性混合物; 新型碳水化合物磷和镍催化剂组合物; 和光学纯的(S) - ( - ) - 2-(6-甲氧基-2-萘)丙腈。
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公开(公告)号:US5175335A
公开(公告)日:1992-12-29
申请号:US790322
申请日:1991-11-12
申请人: Albert L. Casalnuovo , Thaliyil V. Rajanbabu , Lawrence W. Gosser , Ronald J. McKinney , William A. Nugent, Jr.
发明人: Albert L. Casalnuovo , Thaliyil V. Rajanbabu , Lawrence W. Gosser , Ronald J. McKinney , William A. Nugent, Jr.
IPC分类号: C07B53/00 , C07C255/33 , C07C255/37
CPC分类号: C07B53/00 , C07C255/33 , C07C255/37
摘要: The invention provides a process for enantioselective hydrocyanation of aromatic vinyl compounds which produces nonracemic mixtures of chiral, arylpropionitriles; novel carbohydrate phosphorus and nickel catalyst compositions; and optically pure (S)-(-)-2-(6-metehoxy-2-naphthalene)propionitrile.
摘要翻译: 本发明提供了芳族乙烯基化合物的对映选择性氢氰化方法,其产生手性芳基丙腈的非水性混合物; 新型碳水化合物磷和镍催化剂组合物; 和光学纯的(S) - ( - ) - 2-(6-甲氧基-2-萘)丙腈。
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公开(公告)号:US5043510A
公开(公告)日:1991-08-27
申请号:US328881
申请日:1989-03-27
IPC分类号: C07B37/04 , C07C67/343 , C07D307/81 , C07F9/6558
CPC分类号: C07F9/65586 , C07B37/04 , C07C67/343 , C07D307/81
摘要: This invention relates to a process for alkylation at carbon and phosphorus sites in an aqueous medium using precious metal catalysts containing sulfonated triarylphosphines (STP) of the generic formula P(C.sub.6 H.sub.4 SO.sub.3 --)X(C.sub.6 H.sub.5)Y (X+Y=3).
摘要翻译: 本发明涉及使用含有通式P(C6H4SO3-)X(C6H5)Y(X + Y = 3))的磺化三芳基膦(STP)的贵金属催化剂在水介质中在碳和磷位置进行烷基化的方法。
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