申请人:——
公开号:US20020062027A1
公开(公告)日:2002-05-23
Compounds of formulae I and Ia,
1
wherein
X
1
is secondary phosphino; R
3
is hydrogen, a hydrocarbon radical having from 1 to 20 carbon atoms, a heterohydrocarbon radical, bonded via a carbon atom, having from 2 to 20 atoms and at least one hetero atom selected from the group O, S and NR, or ferrocenyl; R is H or C
1
-C
4
alkyl; each R
4
individually or both R
4
together are a hydrocarbon radical having from 1 to 20 carbon atoms; and R
01
and R
02
are each independently of the other a hydrogen atom or a hydrocarbon radical having from 1 to 20 carbon atoms, are chiral ligands for metal complexes with metals of sub-groups I and VIII, which are catalysts for asymmetric addition reactions, for example of hydrogen, to prochiral unsaturated organic compounds.
化合物I和Ia,其中X1是次磷酰基; R3是氢,具有1至20个碳原子的碳氢基团,通过碳原子与至少一个来自O、S和NR的杂原子的杂碳氢基团相结合,或者是二茂铁基; R是H或C1-C4烷基; 每个R4分别或两个R4一起都是具有1至20个碳原子的碳氢基团; R01和R02各自独立地是氢原子或具有1至20个碳原子的碳氢基团,是亚组I和VIII金属的手性配体,是不对称加成反应(例如氢的加成)的催化剂,用于对于非手性不饱和有机化合物的反应。