Lower-rim Cinchona anchored calix[4]arene cationic catalysts were developed for asymmetric Michael addition of acetylacetone to β-nitrostyrenes. The desired Michael adducts were formed with high yields and enantioselectivities. Density functional theory investigations throw light on the catalyst–substrate interaction and the reaction mechanism.
开发了下边缘
金鸡纳锚定杯[4]
芳烃阳离子催化剂,用于
乙酰丙酮与
β-硝基苯乙烯的不对称迈克尔加成。以高产率和对映选择性形成所需的迈克尔加合物。密度泛函理论研究揭示了催化剂-底物相互作用和反应机理。