Metathesis reactions of unsaturated esters catalyzed by homogenous tungsten complexes. Syntheses of civetone and macrolides

J Tsuji, S Hashiguchi

Index: Tsuji, Jiro; Hashiguchi, Shohei Journal of Organometallic Chemistry, 1981 , vol. 218, # 1 p. 69 - 80

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Citation Number: 38

Abstract

Abstract The metathesis reactions of methyl 10-undecenoate, methyl oleate and oleyl acetate have been carried out using WCl 6 and WOCl 4 as primarycatalysts and SnMe 4, PbMe 4, Cp 2 TiMe 2, and Cp 2 ZrMe 2 as cocatalysts. The catalyst system WOCl 4/Cp 2 TiMe 2 was found to be very active for the metathesis of the unsaturated esters and is somewhat better than the system WCl 6/SnMe 4. Diethyl 9-octadecene-1, 18-dioate, ...