Daiichi Fine Chemical Co., Ltd.

Takahiro Isobe

Tadashi Takeuchi

Michimasa Watanabe

Yuhki Takeuchi

A compound represented by the following general formula (I): [wherein Rrepresents hydrogen atom, or an alkyl group, Rrepresents a hydroxyalkyl group, or a triarylmethyloxyalkyl group, or Rand Rcombine together to represent &#x2014;C(R)(R)&#x2014; (Rand Rrepresent hydrogen atom, an alkyl group, or hydroxyl group, or Rand Rmay combine together to represent oxo group), or &#x2014;C(R)(R)&#x2014;O&#x2014;C(R)(R)&#x2014; (Rto Rrepresent hydrogen atom, an alkyl group, or hydroxyl group, or Rand Rmay combine together to represent oxo group, and Rand Rmay combine together to represent oxo group); Arto Arindependently represent an aryl group (the aryl group may have 1 to 5 of the same or different substituents), *1 to *4 indicate asymmetric carbons, and configurations are cis between *1 and *2, cis between *3 and *4, and trans between *2 and *3]. An optically active phosphine ligand which can be easily synthesized and gives a transition metal complex showing superior asymmetric catalyst activity is provided.

Growing community of inventors

Toyama, Japan

Takahiro Isobe