Stibene epoxidation with t-butyl hydroperoxide and hydrogen peroxide catalyzed by transition metal substituted heteropolytungstates期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Stibene epoxidation with t-butyl hydroperoxide and hydrogen peroxide catalyzed by transition metal substituted heteropolytungstates

Authors:	O A Kholdeeva G M Maksimov M A Fedotov and V A Grigoriev

Institution:	(1) Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia

Abstract:	Tetra-n-butylammonium salts of transition metal-substituted heteropolytungstates, PW₁₁MO ₃₉ ^n– , catalyze the epoxidation of stilbenes by t-butyl hydroperoxide (M=Co^II, Mn^II, Cu^II, Ti^IV, Ru^IV, V^V, Nb^V) and hydrogen peroxide (M=Zr^IV) in acetonitrile. Epoxidation of cis-stilbene is non-stereospecific.

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