PARTIAL ASYMMETRIC SYNTHESIS OF ATROPISOMERIC 1,1'-BINAPHTHYLS VIA THE ULLMANN COUPLING REACTION OF CHIRAL ALCOHOL ESTERS OF 1-BROMO-2-NAPHTHOIC ACID

Article abstract of DOI:10.1246/cl.1980.1027

The Ullmann coupling of 1-bromo-2-naphthoates of C-chiral alcohols of R- and S-configuration induced axial dissymmetry of R- and S-chirality, respctively, in the newly formed 1,1'-bond of the binaphthyls; the optical yield amounted up to 13percent where the chiral alcohol was l-menthol.