Improved Protocol for the Three-ComponentBiginelli Reactions andBiginelli-LikeMannich Reactions of Carbamates, Aldehydes, and Ketones
作者:Li-Wen Xu、Zong-Ting Wang、Chun-Gu Xia、Lyi Li、Pei-Qing Zhao
DOI:10.1002/hlca.200490234
日期:2004.10
A mild, convenient, and improved method for the direct three-component Biginelli and Biginelli-like Mannich-type reactions of carbonyl compounds in the presence of inexpensive FeCl3⋅6 H2O and Me3SiCl as catalysts is described. Reactions performed with carbamates can be used to directly access N-protected β-amino carbonyl compounds in a single step.
用于直接三组分一种温和,方便,和改进的方法的Biginelli和的Biginelli样曼尼希型中的廉价的FeCl存在的羰基化合物的反应3 ⋅6ħ 2 O和我3的SiCl作为催化剂进行说明。与氨基甲酸酯进行的反应可用于在单个步骤中直接获得N保护的β-氨基羰基化合物。