Coupling of nucleophiles, vinyl compounds or CO with water, alcohols or amines to organic compounds
申请人:Solvias AG
公开号:EP1132361A1
公开(公告)日:2001-09-12
Process for the coupling of
a) nucleophiles selected from the group alcohols, thioles, amines, metallised hydrocarbons, CH-acidic compounds and metal cyanides, or of
b) carbon monoxide mixed with water, alcohols, ammonia, primary or secondary amines, to organic compounds selected from the group of leaving-group-containing aromatics, hetero-aromatics with a C-bonded leaving group, aromatic or hetero-aromatic methyl compounds with a leaving group bonded to the methyl group, ethylenically unsaturated organic compounds with a C-bonded leaving group, or organic allyl compounds with a leaving group in allyl position, or
c) vinyl compounds with leaving-group-containing aromatics,
whilst cleaving the leaving group in the presence of Pd complexes with monophospholine ligands as the catalyst, whereby variants b) and c) are carried out in the presence of an inorganic base or organic nitrogen base, the process being characterised in that the Pd complex contains secondary monophosphines with aliphatic, branched or cyclic substituents as ligands.
耦合工艺
a) 选自醇、硫醇、胺、金属化烃、CH 酸性化合物和金属氰化物组的亲核物,或
b) 与水、醇、氨、伯胺或仲胺混合的一氧化碳,与选自以下组别的有机化合物发生偶联:含离去基团的芳香族化合物、带有 C 键离去基团的杂芳香族化合物、带有与甲基键合的离去基团的芳香族或杂芳香族甲基化合物、带有 C 键离去基团的乙烯基不饱和有机化合物或在烯丙基位置带有离去基团的有机烯丙基化合物,或
c) 含离去基团芳香族的乙烯基化合物、
在具有单磷配体的钯络合物作为催化剂存在的情况下裂解离去基团,其中变体 b) 和 c) 在无机碱或有机氮碱存在的情况下进行,该工艺的特点是钯络合物含有脂肪族、支链或环状取代基作为配体的仲单磷酸。