醚转移方法能够立体选择性地以良好的收率生成 1,3-二醇单醚和二醚。令人惊讶的是,当暴露于先前优化的一氯化碘条件时,烯丙基和苄基底物没有提供任何所需产物。在此,已开发出用于醚转移的第二代活化条件,以规避这些底物的不良副反应。现在已经完成了这种化学在对映选择性合成 diospongins A 和 B 中的应用。
Falck; Bhatt, Rama K.; Ye, Jianhua, Journal of the American Chemical Society, 1995, vol. 117, # 22, p. 5973 - 5979
作者:Falck、Bhatt, Rama K.、Ye, Jianhua
DOI:——
日期:——
A simple and highly efficient deprotecting method for methoxymethyl and methoxyethoxymethyl ethers and methoxyethoxymethyl esters
作者:Adam Shih-Yuan Lee、Yi-Jung Hu、Shu-Fang Chu
DOI:10.1016/s0040-4020(01)00062-x
日期:2001.3
Cross-Metathesis between α-Methylene-γ-butyrolactone and Olefins: A Dramatic Additive Effect
作者:Joëlle Moïse、Stellios Arseniyadis、Janine Cossy
DOI:10.1021/ol0703940
日期:2007.4.1
Olefin cross-metathesis between alpha-methylene-gamma-butyrolactone and terminal olefins is described. Moderate to excellent yields of alpha-alkylidene-gamma-butyrolactones were obtained with high E-stereoselectivity in the presence of low catalyst loading in refluxing CH2Cl2. In addition, the use of various additives was found to have a dramatic effect on the efficiency of the cross-metathesis (CM) process by circumventing the formation of the isomerized byproduct.