An efficient Bronsted acid assisted Lewis base catalysis protocol for the synthesis of enantiomerically pure trifluoromethylated dihydropyridazines starting from readily available hydrazones and alpha,beta-unsaturated aldehydes has been developed. The reaction exhibits high tolerance towards many functional groups and is applicable to various aliphatic, aromatic and hetero-aromatic alpha,beta-unsaturated
已经开发出一种有效的布朗斯台德酸辅助的路易斯碱催化方案,该方案用于从对等的和α,β-不饱和醛开始合成对映体纯的三
氟甲基化的二氢
哒嗪。该反应显示出对许多官能团的高耐受性,并且适用于各种脂族,芳族和杂芳族的α,β-不饱和醛,并且以高收率和优异的对映选择性提供产物。