(+)-NLEs, have been detected in the Ti(IV)/BINOL complex-mediated catalytic asymmetric aldol reaction of three different masked acetoacetate esters. The use of a different procedure for the catalyst preparation disclosed the occurrence of aldol condensation of Chan's diene through an auto-inductive process.
在三种不同掩蔽的
乙酰乙酸酯的Ti(IV)/ BINOL络合物介导的催化不对称羟醛反应中已检测到正非线性效应(+)-NLE。使用不同的方法制备催化剂表明通过自动感应方法发生了陈氏二烯的醛醇缩合反应。