Titanocene (II)??Promoted Cross??Coupling of Unsaturated Compounds

A Ogata, M Nemoto, K Arai, K Kobayashi…

Index: Ogata, Akitoshi; Nemoto, Masami; Arai, Koutarou; Kobayashi, Kenji; Tsubouchi, Akira; Takeda, Takeshi European Journal of Organic Chemistry, 2006 , # 4 p. 878 - 880

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Abstract

Abstract Vinyl pivalate in the presence of the titanocene (II) reagent Cp 2 Ti [P (OEt) 3] 2 reacts both with nonpolar C≡ C triple bonds and with polar C= O double bonds, to produce conjugated dienes and allylic alcohols, respectively. Similar alkenylation also takes place when (Z)-alkenyl sulfones are treated with alkynes and carbonyl compounds.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)