Optically activate phosphines,their preparation and their metal complexes, and use in asymmetric synthesis

摘要

Optically active phosphines of the general formula I or II XnPRm I <IMAGE> II where the variables have the following meanings: X is an optically active terpene radical, R is an unsubstituted or substituted phenyl radical, Y is a bridge member having 1-10 C atoms in the formula I n is 1,2 or 3 and m is 0,1 or 2 with the proviso that n+m=3 in the formula II n is 1 or 2 and m is 0 or 1 with the proviso that n+m=2, their preparation and use are described.