Chiral-rhodium-diphosphine complexes for asymetric hydrogenations

摘要

there will be new, chiral rhodiumdiphosphinkomplexe described the formulawherein x, which may be fixed on a carrier, a rest of the formula z - coou2015 represents, wherein z is the group;perfluorphenyl, perfluorbiphenyl or rest of the formulameans and r ', r2 and r3 halogenated alkyl, lower level, perfluorphenyl, perflour - c1 - 20 - alkyl, hydrogen or the group coa or aoc (cf2) n, which is what a leftovers - or or - number 2 meanshowever, at least one of the substituents r1, r2 and r3 is hydrogen, fluorine, r, inferior alkyl or cation, r 'hydrogen or less alkyl.and n is a number from 1 to 20, and further a chiral diphosphinliganden wherein y and l a neutral ligand.;the complexes serve as catalysts for asymmetric hydrogenations.