Enantioselective Michael Addition of Aldehydes to Maleimides Organocatalyzed by a Chiral Primary Amine-Salicylamide
作者:Alejandro Torregrosa-Chinillach、Adrien Moragues、Haritz Pérez-Furundarena、Rafael Chinchilla、Enrique Gómez-Bengoa、Gabriela Guillena
DOI:10.3390/molecules23123299
日期:——
amine-salicylamide derived from chiral trans-cyclohexane-1,2-diamine was used as an organocatalyst for the enantioselective conjugate addition of aldehydes, mainly α,α-disubstituted to N-substituted maleimides. The reaction was performed in toluene as a solvent at room temperature. The corresponding enantioenriched adducts were obtained with high yields and enantioselectivities up to 94%. Theoretical calculations
衍生自手性反式-环己烷-1,2-二胺的伯胺-水杨酰胺用作醛的对映选择性共轭加成的有机催化剂,主要是 α,α-二取代到 N-取代的马来酰亚胺。反应在室温下在甲苯作为溶剂中进行。以高产率和高达 94% 的对映选择性获得了相应的对映体富集的加合物。理论计算用于证明立体感应的合理性。