4.4 Article

Copper(II)-acid catalyzed cyclopropanation of 1,3-dienamides by electrophilic activation of α-aryl diazoesters

Journal

TETRAHEDRON LETTERS
Volume 55, Issue 19, Pages 3041-3044

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2014.03.115

Keywords

Cycloaddition; Diazo compound; Alkene; Diastereoselectivity; Regioselectivity

Funding

  1. JGC-S Scholarship Foundation [1307]
  2. Grants-in-Aid for Scientific Research [24550043] Funding Source: KAKEN

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Copper(II)-acid catalyzed cyclopropanation of electron-rich alkenes, such as 1,3-dienamides, with cc-aryl diazoesters are described. The reaction could be performed without rare metal catalysts, excess substrate, or the need for the slow addition of the diazoesters. (C) 2014 Elsevier Ltd. All rights reserved.

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