Vinyl copper (I) compounds: Part II: Stereospecific addition of homocuprates to 1??alkynes in tetrahydrofuran

H Westmijze, J Meijer, HJT Bos…

Index: Westmijze,H. et al. Recueil des Travaux Chimiques des Pays-Bas, 1976 , vol. 95, p. 304 - 307

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Citation Number: 25

Abstract

Abstract Homocuprates [RCuR”] MgX, 1 (R= alkyl; R”= R or BuC≡ C) appeared to be useful reagents for the introduction of an R group into 1-alkynes R′− C≡ C− H 2 (R′= Ph, H, alkyl) in tetrahydrofuran as a solvent. Depending on R and R′ terminal alkenes RR′ C [DOUBLE BOND] CH 2 4a, non-terminal alkenes E− R′ CH [DOUBLE BOND] CHR 4b or mixtures of 4a and 4b were isolated after protic work-up. Except for the reaction of t-Bu 2 ...