Tetrahedron

The stereocontrolled photoaddition of allene to cyclopent-1-ene-1-carboxaldehydes. A total synthesis of (±) steviol methyl ester and isosteviol methyl ester

FE Ziegler, JA Kloek

Index: Ziegler,F.E.; Kloek,J.A. Tetrahedron, 1977 , vol. 33, p. 373 - 380

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Citation Number: 41

Abstract

... 8. The ground state of allene is considered to react with the more stable configuration (i) of the excited state of the conjugated carbonyl compound, having the negative charge localized at the tetrahedral β-carbon and the positive charge at the α-carbon. 9. ... 2 National Institutes of Health Predoctoral Follow 1969–1972; For a preliminary report see, FE Ziegler and JA Kloek, Tetrahedron Letters 315 (1974). Copyright © 1977 Published by Elsevier Ltd. ...