Patent ID: 6248918
Filing Date: 2001-06-19
Classification: C07B,C07C,C07F

Abstract:
An optically active binaphthyl compound of the formula (1): ##STR15##wherein R.sup.1 is a C.sub.1-6 alkyl group, an aryl group or an aryl C.sub.1-6 alkyl group, X is an oxygen atom or a sulfur atom, R.sup.2 is a hydrogen atom, a C.sub.1-6 alkyl group, a C.sub.2-6 alkenyl group, a C.sub.2-6 alkynyl group or a halogen atom, each of L.sup.1 and L.sup.2 is a hydrogen atom, or L.sup.1 and L.sup.2 together form MY wherein M is a rare earth element or a Group 13 element, and Y is a C.sub.1-6 alkoxy group, a C.sub.1-6 alkylcarbonyloxy group or a halogen atom, and m is an integer of from 1 to 3.