Keggin类杂多化合物催化α, β-不饱和羰基化合物环氧化(英文)

Epoxidation of α, β-Unsaturated Carbonyl Compounds over Keggin Heteropoly Compounds

在乙睛溶剂中考察了一系列杂多化合物和过氧化氢水溶液催化的各种缺电子的α,β-不饱和羰基化合物的环氧化反应.在所研究的杂多化合物中,二缺位的[γ-SiW10(H2O)2O34](Bu4N)4显示出了最高的活性.

The epoxidation of a variety of electron-deficient α, β-unsaturated carbonyl compounds has been studied using a series of heteropoly compounds and aqueous hydrogen peroxide in acetonitrile. Among the heteropoly compounds investigated, a divacant lacunary [γ-SiW_(10)(H_2O)_2O_(34)](Bu_4N)_4 showed the highest catalytic performance for the epoxidation ofα, β-unsaturated carbonyl compounds.