Selective transformation of olefins is an important route to produce cyclic monoether glycol products, but the current catalysts still suffer from insufficient activity, selectivity, and durability. Herein, we reported that molybdenum oxide on siliceous beta zeolite was highly efficient for the selective conversion of cyclohexene with a trans-2-methoxycyclohexanol yield as high as 95% in the presence of methanol and tert-butyl hydroperoxide as an oxidant. This reaction included the epoxidation of cyclohexene and subsequent solvolysis. Mechanistic studies revealed that the siliceous beta zeolite benefited the formation of abundant monomeric MoO_x species, which was efficient for both the epoxidation of cyclohexene and subsequent solvolysis. Furthermore, this catalyst was also active for the conversion of other olefins, achieving the corresponding β-alkoxyalcohols.

中文翻译：

---

β 沸石上氧化钼将环己烯选择性转化为 2-甲氧基环己醇

烯烃选择性转化是生产环状单醚二醇产品的重要途径，但目前的催化剂仍存在活性、选择性和耐久性不足的问题。在此，我们报道了在甲醇和叔丁基过氧化氢作为氧化剂存在下，硅质β沸石上的氧化钼对于环己烯的选择性转化非常有效，反式-2-甲氧基环己醇产率高达95% 。该反应包括环己烯的环氧化和随后的溶剂分解。机理研究表明，硅质β沸石有利于形成丰富的单体MoO _x物质，这对于环己烯的环氧化和随后的溶剂分解都是有效的。此外，该催化剂对于其他烯烃的转化也具有活性，获得相应的β-烷氧基醇。