摘要:
Compounds of formula III, wherein R 6 und R 7 signify identical or different secondary phosphino; R 8 is -CH 2 -OH, -CH 2 -NH 2 , -CH 2 -O-B-FU, -CH 2 -NH 2 -B-FU, or -O-B-FU; R 9 has the same significance as R 8 or is C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy; or R 8 and R 9 together signify HOCH(CH 2 -O-) 2 , H 2 NCH-(CH 2 -O-) 2 , FU-B-OCH(CH 2 -O-) 2 or FU-B-HNCH(CH 2 -O-) 2 ; B is a bridging group; and FU is a functional group. The compounds may be bonded to inorganic or organic carriers. Their d-8 metal complexes are valuable catalysts for the enantioselective hydrogenation of prochiral organic compounds with carbon multiple bonds or carbon/hetero atom multiple bonds.