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    • 40. 发明授权
    • Diphosphines containing silane groups, immobilise diphosphines and the
use thereof as hydrogenation catalysts
    • 含有硅烷基团的二羟基磷灰石,硫化二磷酸酯及其作为氢化催化剂的用途
    • US5244857A
    • 1993-09-14
    • US823517
    • 1992-01-21
    • Benoit PuginManfred MullerFelix Spindler
    • Benoit PuginManfred MullerFelix Spindler
    • B01J31/02B01J31/16B01J31/22B01J31/24C07C29/145C07F9/572C07F15/00
    • C07F15/008B01J31/1633B01J31/2291B01J31/2409C07F15/004C07F9/5722C07F9/5726B01J2231/643B01J2231/645B01J2531/822B01J2531/827Y02P20/588
    • Compounds of formula II ##STR1## wherein the groups (R.sub.1).sub.2 P(CH.sub.2).sub.m and n are in o- or m-position to each other and the substituents R.sub.1 are identical or different radicals, m and n are each independently of the other 0 or 1, R.sub.1 is linear or branched C.sub.1 -C.sub.12 alkyl, unsubstituted C.sub.5 -C.sub.6 cycloalkyl or C.sub.5 -C.sub.6 cycloalkyl which is substituted by C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, or is phenyl or benzyl, or both substituents R.sub.1 in a group (R.sub.1).sub.2 P together are o,o'-diphenylene, --R.sub.2 --X-- is a bond or --(C.sub.x H.sub.2x --O).sub.y --, or X-- is O-- and R.sub.2 is C.sub.1 -C.sub.6 alkylene, x is an integer from 2 to 6 and y is an integer from 2 to 6, R.sub.3 is C.sub.2 -C.sub.18 alkylene, phenylene or benzylene, and R.sub.4 is C.sub.1 -C.sub.6 alkyl or phenyl, can be applied to solid carriers, such as silica gel or aerosils, and complexed with rhodium or iridium compounds. These materials are heterogeneous and separable catalysts for the asymmetrical hydrogenation of prochiral compounds containing carbon double bonds or carbon/hetero atom double bonds, for example ketones and imines.
    • 式(II)化合物其中基团(R 1)2 P(CH 2)m和n彼此相邻或相邻位置,并且取代基R 1是相同或不同的基团,m和n各自独立地为 的另一个0或1,R 1是被C 1 -C 4烷基或C 1 -C 4烷氧基取代的直链或支链C 1 -C 12烷基,未取代的C 5 -C 6环烷基或C 5 -C 6环烷基,或是苯基或苄基,或两个取代基R 1 R1)2P一起是o,o'-二亚苯基,-R 2 -X-是键或 - (C x H 2 O-O)y - ,或X是O-,R 2是C 1 -C 6亚烷基,x是从2到 6,y为2〜6的整数,R3为C2-C18亚烷基,亚苯基或亚苯基,R4为C1-C6烷基或苯基,可用于固体载体如硅胶或气溶胶,并与铑或铱络合 化合物。 这些材料是用于不对称氢化含有双键或碳/杂原子双键的前手性化合物的非均相和可分离的催化剂,例如酮和亚胺。