A superior molecular bichromophore for the determination of absolute configuration of primary amines
摘要:
Readily available molecular bichromophore, N-(1,8-naphthaloyl)-3-imino-2-naphthoic acid (NAN), is used to derivatize primary amines. NAN-amides show superior sensitivity in the determination of absolute configuration of amines front the sign of the induced exciton Cotton effect. The sign of the Cotton effect is determined by the preferred helicity of the NAN chromophore, which is dependent on the relative size of the substituents at the chiral (RRC)-R-1-C-2*HN carbon atom. (C) 2004 Elsevier Ltd. All rights reserved.