OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY AND PROCESS FOR PRODUCING alpha-AMINO ACID AND DERIVATIVE THEREOF WITH THE SAME
申请人:Maruoka Keiji
公开号:US20070135654A1
公开(公告)日:2007-06-14
The present invention provides a compound of the following formula (I) below. This compound (I) can be produced by reacting a 2,2′-dimethylene bromide-1,1′-binaphthyl derivative, which can be produced by a relatively small number of processes, with an easily available secondary amine. This compound (I) is useful as a chiral phase-transfer catalyst.