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Formation of seven- and eight-membered rings by manganese (III)-based oxidative free radical cyclization
Journal article   Peer reviewed

Formation of seven- and eight-membered rings by manganese (III)-based oxidative free radical cyclization

John E Merritt, Marvin Sasson, Steven A Kates and Barry B Snider
Tetrahedron letters, Vol.29(41), pp.5209-5212
1988

Abstract

Oxidation Cyclization Free radicals Esters Alicyclic compounds Chemical Reactions Organic Chemistry
Oxidative free radical cyclizations of β-ketoesters 1, 5, 11, and 14 with Mn(OAc)3·2H2O and Cu(OAc)2·H2O proceed in moderate yield to give seven- and eight-membered rings. The regiochemistry of the cyclization and oxidative termination are described.

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