An Efficient and Scalable One-Pot Double Michael Addition-Dieckmann Condensation for the Synthesis of 4,4-Disubstituted Cyclohexane β-Keto Esters
作者:Michael R. DeGraffenreid、Sarah Bennett、Sebastien Caille、Felix Gonzalez-Lopez de Turiso、Randall W. Hungate、Lisa D. Julian、Jacob A. Kaizerman、Dustin L. McMinn、Yosup Rew、Daqing Sun、Xuelei Yan、Jay P. Powers
DOI:10.1021/jo071202h
日期:2007.9.1
A simple, scalable, and efficient one-pot methodology for the synthesis of 4,4-disubstituted cyclohexane β-keto esters from benzylic nitriles or esters and methyl acrylate promoted by potassium tert-butoxide is described. The process relies on a tandemdoubleMichael addition-Dieckmann condensation reaction, which results in the formation of three discrete carbon−carbon bonds in a single pot, including