| abstract |
The present invention provides an optically active phosphine ligand which can be easily synthesized and gives a transition metal complex excellent in asymmetric catalytic activity. The following general formula (I): [R 1 represents a hydrogen atom or an alkyl group, R 2 represents a hydroxyalkyl group or a triarylmethyloxyalkyl group; Ar 1 to Ar 4 represent an aryl group (the aryl group represents 1 to 5 identical or different substituents; * 1 to * 4 are asymmetric carbons, * 1 and * 2 are cis, * 3 and * 4 are cis, and * 2 and * 3 is trans]. [Selection figure] None |