An efficient and benign method for the regio- and stereoselective synthesis of halohydrins and β-halo ethers from dihydropyrans, dihydrofurans and anhydro sugars in the presence of a halide salt and hydrogen peroxide is presented with tungstate-exchanged takovite as oxidation catalyst.
提出了一种高效,良性的方法,该方法用于在卤化物盐和
过氧化氢的存在下,由
钨酸盐交换的塔科维特作为氧化催化剂,从二氢
吡喃,二氢
呋喃和无
水糖区域和立体选择性地合成卤代醇和β-卤代醚。