Literature DB >> 17407299

Cross-metathesis between alpha-methylene-gamma-butyrolactone and olefins: a dramatic additive effect.

Joëlle Moïse1, Stellios Arseniyadis, Janine Cossy.   

Abstract

[reaction: see text] 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.

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Year:  2007        PMID： 17407299     DOI： 10.1021/ol0703940

Source DB:  PubMed          Journal:  Org Lett        ISSN： 1523-7052            Impact factor:   6.005


  11 in total

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