Cross-Metathesis between -Methylene--butyrolactone and Olefins:
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- 作者：Joë ; lle Moï ; se ; Stellios Arseniyadis ; Janine Cossy
- 刊名：Organic Letters
- 出版年：2007
- 出版时间：April 26, 2007
- 年：2007
- 卷：9
- 期：9
- 页码：1695 - 1698
- 全文大小：93K
- 年卷期：v.9,no.9(April 26, 2007)
- ISSN：1523-7052
文摘
-methylene-
-butyrolactone and terminal olefins is described. Moderate to excellent yields of -alkylidene--butyrolactones were obtained with high E-stereoselectivity in the presence of low catalyst loading in refluxing CH2Cl2. In addition, the useof various additives was found to have a dramatic effect on the efficiency of the cross-metathesis (CM) process by circumventing the formationof the isomerized byproduct.