to stably exist in various solvents and pH = 2–12 solutions. Additionally, the V–Cu–MOF as a heterogeneous catalyst can catalyze the carboxylative cyclization of CO2 and propargylic alcohols to high value-added α-alkylidene cyclic carbonates at room temperature, and the conversion and selectivity are almost 100%. More importantly, no obvious decrease in the yield of the α-alkylidene cyclic carbonate
一种新型的基于聚氧
钒酸盐的
铜(I)-有机骨架,[Cu I(bib)] 4 V V 4 O 12 }(V-Cu-MOF,bib = 1,4-bis(1 H-
咪唑基-1- ))在温和的
水热条件下容易合成。V–Cu–MOF的结构由环状V 4 O 12 } 4-阴离子基团和一维链Cu(I)–MOF([Cu I(bib)] +)构成。V 4 O 12 } 4−团簇的存在稳定了Cu(I)–MOF和Cu(I)作为中心,从而提高了V–Cu–MOF的稳定性,使其能够稳定地存在于各种溶剂和pH = 2–12的溶液中。此外,V-Cu-MOF作为非均相催化剂可以在室温下催化CO 2和炔
丙醇向高附加值α-亚烷基环状
碳酸酯的羧化环化反应,转化率和选择性几乎达到100%。更重要的是,在十个循环后,没有观察到α-亚烷基环状
碳酸酯的收率明显降低。这些结果表明V-Cu-MOF具有出色的催化活性和可持续性。对催化反应机理