Cu(II)-Catalyzed Acylation by Thiol Esters Under Neutral Conditions: Tandem Acylation-Wittig Reaction Leading to a One-Pot Synthesis of Butenolides
Kazumasa Matsuo and Mitsuru Shindo*
*Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, and Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen, Kasuga 816-8580, Japan, Email: shindocm.kyushu-u.ac.jp
K. Matuso, M. Shindo, Org. Lett., 2010, 12, 5346-5349.
DOI: 10.1021/ol102407k (free Supporting Information)
A Cu(II)-catalyzed acylation of acyloins with a thiol ester present in Wittig reagents under neutral conditions through a push-pull mechanism enables a one-pot lactonization to yield butenolides. The synthetic utility of this method for the synthesis of natural products is shown.
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