[EN] BIDENTATE CHIRAL LIGANDS FOR USE IN CATALYTIC ASYMMETRIC ADDITION REACTIONS<br/>[FR] LIGANDS CHIRAUX BIDENTATES UTILISABLES DANS DES RÉACTIONS D'ADDITION CATALYTIQUES ASYMÉTRIQUES
申请人:SOLVIAS AG
公开号:WO2009065784A1
公开(公告)日:2009-05-28
Compounds of the formula (I), in the form of mixtures comprising predominantly one diastereomer or in the form of pure diastereomers, Z1-Q-P*R0R1 (I) in which Z1 is a C-bonded, secondary phosphine group -P(R)2; in which R is in each case independently hydrocarbon radicals or heterohydrocarbon radicals, or Z1 is the -P*R0R1 group; Q is a bivalent, achiral, aromatic base skeleton, a bivalent, achiral ferrocene base skeleton, an optionally substituted bivalent cycloalkane or heterocycloalkane skeleton, or a C1-C4-alkylene skeleton, and in which base skeletons a secondary phosphine group Z1 is bonded directly to a carbon atom, or, in the case of cyclic base skeletons, directly to a carbon atom or via a C1-C4-alkylene group, and in which base skeletons a P-chiral group -P*R0R1 is bonded directly to a carbon atom, or, in the case of cyclic base skeletons, directly to a carbon atom or via a C1-C4-alkylene group to a carbon atom such that the phosphorus atoms are linked via 1 to 7 atoms of a carbon chain optionally interrupted by heteroatoms from the group of O, S, N, Fe or Si; P* is a chiral phosphorus atom; R0 is methyl or hydroxyl, and R0 is methyl when Z1 is the -P*R0R1 group; and R1 is a C-bonded optically enriched or optically pure chiral, mono- or polycyclic, nonaromatic hydrocarbon or heterohydrocarbon radical which has 3 to 12 ring atoms and 1 to 4 rings and which has a stereogenic carbon atom at least in the α position to the P-C bond; Metal complexes of these ligands are homogeneous catalysts for asymmetric addition reactions, particularly hydrogenations.
化合物的公式(I)的形式,以主要包含一种对映异构体的混合物形式或纯对映异构体的形式,Z1-Q-P*R0R1(I),其中Z1是C-键合的次磷酸基团-P(R)2;其中R分别是烃基或杂烃基,或Z1是-P*R0R1基团;Q是二价的、不对映的、芳香基骨架,二价的、不对映的二茂铁基骨架,一个可选择取代的二价环烷烃或杂环烷烃骨架,或一个C1-C4-烷基骨架,并且在这些基骨架中,次磷酸基团Z1直接键合到一个碳原子,或者在环状基骨架的情况下,直接键合到一个碳原子或通过一个C1-C4-烷基团,以及在这些基骨架中,一个P-手性基团-P*R0R1直接键合到一个碳原子,或者在环状基骨架的情况下,直接键合到一个碳原子或通过一个C1-C4-烷基团到一个碳原子,以使磷原子通过1到7个碳链原子连接,这些碳链原子可以通过来自O、S、N、Fe或Si的杂原子间断连接;P*是一个手性磷原子;R0是甲基或羟基,当Z1是-P*R0R1基团时,R0是甲基;R1是一个C-键合的光学富集或光学纯的手性、单环或多环、非芳香烃基或杂烃基,具有3到12个环原子和1到4个环,并且至少在P-C键的α位置具有一个立体异构碳原子;这些配体的金属络合物是用于不对称加成反应的均相催化剂,特别是氢化反应。