R3Cu2M species: Convenient cuprates for the conversion of 1??alkynes into 1??alkenes

H Westmijze, H Kleijn, J Meijer…

Index: Westmijze, H.; Kleijn, H.; Meijer, J.; Vermeer, P. Recueil: Journal of the Royal Netherlands Chemical Society, 1981 , vol. 100, # 3 p. 98 - 102

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Citation Number: 15

Abstract

Abstract The paper describes reactions of 1-alkynes, R 1-C≡ CH, with new cuprate species of the type R 3 Cu 2 M [M= Mg (Cl, Br)]. Under suitably chosen conditions a smooth transfer of R (Me or Et) from the cuprates to the 1-alkynes (R 1= Ph or nC 6 H 13) could be realized. The resulting stereospecifically generated adducts [(RR 1 C [DOUBLE BOND] CH) x Cu 2 R 3-x] Mg (Cl or Br) were stable under the conditions of the reactions, provided that a ...

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