The Development of Efficient Protocols for the Palladium-Catalyzed Cyclization Reactions of Secondary Amides and Carbamates
作者:Bryant H. Yang、Stephen L. Buchwald
DOI:10.1021/ol9905351
日期:1999.7.1
[formula: see text] With the proper choice of palladium catalyst, ligand, and base, five-, six-, and seven-membered rings are formed efficiently from secondary amide or secondary carbamate precursors, offering significant improvements to currently existing methodology.
[公式:见文]以钯催化剂的适当选择,配体和碱,五,六,七元环由仲酰胺或仲氨基甲酸酯前体有效地形成,将提供显著改进现有方法。