Synthesis of (Z)-1, 2-bis (trimethylstannyl)-1-alkenes by platinum-catalysed addition of hexamethyldistannane to 1-alkynes

…, A Amamria, H Killing, D Rutschow

Index: Mitchell, T. N.; Amamria, A.; Killing, H.; Rutschow, D. Journal of Organometallic Chemistry, 1983 , vol. 241, # 3 p. C45 - C47

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Abstract

Addition of hexamethyldistannane to l-alkynes in the presence of tetrakis(tri- phenylphosphine)palladium yields the title compounds, which can be photo- chemically isomerised to the corresponding (E)-distannylalkenes. ... We [ 11 and others [ 21 have recently been interested in a-metallated vinyl an- ionoids of the type RCH=C(M)(M'Me,) (M = Li, MgX, Cu; M' = Sn [l]; M = Li, M' = Si [ 21). As a precursor for these we used l,l-bis(trimethylstannyl)-1-alkenes (I), ...