A method for the preparation of terminal and internal conjugated diynes via palladium-catalyzed cross-coupling

E Negishi, N Okukado, SF Lovich…

Index: Negishi, Ei-ichi; Okukado, Nobuhisa; Lovich, Stephen F.; Luo, Fen-Tair Journal of Organic Chemistry, 1984 , vol. 49, # 14 p. 2629 - 2632

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Citation Number: 83

Abstract

(3). To a Teflon bottle was added 16.7 g (0.12 mol) of freshly distilled a-terpinene (Aldrich), 0.1 g of copper stearate, and 13.1 g (0.11 mol) of methylphosphonous dichloride. The solution was sealed under nitrogen and heated at 82-86 OC for 3 weeks. A dense light- brown oil, constituting approximately one-half of the original total volume of the solution, was formed. slP NMR analaysis of the oil showed it to be a mixture of CH3PC12 and adduct ...