Tetrahedron Letters

Addition reactions to α-cyclopropylidene ketones and aldehydes.

F Huet, A Lechevallier, JM Conia

Index: Huet, F.; Lechevallier, A.; Conia, J. M. Tetrahedron Letters, 1981 , vol. 22, # 37 p. 3585 - 3588

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Citation Number: 3

Abstract

Abstract. &-Cyclopropylidene ketones show high reactivity towards 1, 4-addition reactions. c (-Cyclopropylidene aldehydes l_, aliphatic and aromatic d-cyclopropylidene ketones 2 and ti- -cyclopropylidene cycloalkanones 3, _ still unknown in 1977, are now easily available either by photooxygenation of enol ethers of cyclopropyl ketones, followed by PPh3 reduction(1)(1) or, better,- by Wittig reaction of cyclopropylidenetriphenylphosphorane with o (-keto- or o (- ...