Palladium-catalysed preparation of 1, 2-dienes by selective hydrogenolysis of alk-2-ynyl carbonates with ammonium formate

J Tsuji, T Sugiura, M Yuhara, I Minami

Index: Tsuji, Jiro; Sugiura, Teruo; Yuhara, Masami; Minami, Ichiro Journal of the Chemical Society, Chemical Communications, 1986 , # 12 p. 922 - 924

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Abstract

1,2-Dienes were prepared by the selective hydrogenolysis of al k-2-ynyl carbonates with HC02NH4 catalysed by Pd2(d ba)3.CHC13-PB~n3 (d ba = di benzylideneacetone). ... Palladium-catalysed selective hydrogenolysis of some func- tional groups such as vinyl and aryl halides (avoiding attack on other functional groups) with cheaply available formic acid or its derivatives is useful in organic synthesis.' We have shown that terminal allylic esters can be converted into ...