Chemistry Department, Faculty of Science, Guilan University, POBox 1914, Rasht, Iran e-mail: taba@cd.gu.ac.ir ... Abstract-Enantiomerically pure aluminum lithium bis-(R)-binaphthoxide [(R)-ALB] was synthesized and used to catalyze asymmetric Michael addition of diethyl malonate to ethyl crotonate. ... One of the most fascinating aspects of modern organic chemistry is the synthesis of optically active chiral compounds which play an important role in medicine, ...