Convenient synthesis of diene–zirconocenes and regioselective partial reduction of the more highly substituted double bonds of conjugated dienes via complexation …

JP Maye, E Negishi

Index: Maye, John P.; Negishi, Ei-ichi Journal of the Chemical Society, Chemical Communications, 1993 , # 24 p. 1830 - 1831

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Abstract

Conjugated dienes can be initially converted to their zirconocene complexes most conveniently by their reaction with (C5H5) 2ZrCl2 and freshly ground Mg; the resultant complexes can then be protonolysed with 3 mol dm–3 HCl to give regioselectively monoenes corresponding to partial hydrogenation of the more highly substituted double bond.