Palladium (0)-catalyzed cyclization followed by allylation of allylic alkynoates and a related system

…, N Nagahama, R Sumiya, T Saegusa

Index: Tsuda, Tetsuo; Ohashi, Yuji; Nagahama, Norio; Sumiya, Ritsuo; Saegusa, Takeo Journal of Organic Chemistry, 1988 , vol. 53, # 11 p. 2650 - 2653

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Citation Number: 43

Abstract

Intramolecular cyclization of alkynoic acids catalyzed by mercury (I1)'and palladium (I1) salts2 provides a convenient method of preparing synthetically and biologically important unsaturated lactones. The development of the cyclization coupled with a carbon-carbon bond-forming reaction which gives a substituted unsaturated lactone may be expected to enhance remarkably the usefulness of this (1)(a) Yamamoto, MJ Chem. SOC., Chem. ...