Tetrahedron

Transfert de l'ethoxycarbonylcarbene sur les alcynes substitues en α par un groupe partant

M Vincens, A Dussauge, M Vidal

Index: Vincens,M. et al. Tetrahedron, 1977 , vol. 33, p. 2937 - 2948

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Citation Number: 8

Abstract

Synthesis of ethyl cyclopropenecarboxylates with a leaving group on the position α to the double bond has been realised by photolytic or thermocatalytic decomposition of ethyl diazoacetate with acetylenic substrates. With these adducts allenic, a etylenic or dienic esters are obtained. In the case of photolytic transfer, the proposed intermediate agent is ethoxycarbonyl carbene. If the transfer is thermocatalytic, addition of ethyldiazoacetate to ...