Selective tetrahydropyranylation of alcohols and phenols using titanium(IV) salophen trifluoromethanesulfonate as an efficient catalyst
作者:Maryam Yadegari、Majid Moghadam
DOI:10.1002/aoc.3515
日期:2016.10
Titanium(IV) salophen trifluoromethanesulfonate, [TiIV(salophen)(OSO2CF3)2], as a catalyst enables selective tetrahydropyranylation of alcohols and phenols with 3,4‐dihydro‐2H‐pyran. Using this catalytic system, primary, secondary and tertiary alcohols, as well as phenols, were converted to their corresponding tetrahydropyranyl ethers in high yields and short reaction times at room temperature. Investigation
钛(IV)Salophen三氟甲磺酸钛[Ti IV(salophen)(OSO 2 CF 3)2 ]作为催化剂能够用3,4-二氢-2 H-吡喃对醇和酚进行选择性四氢吡喃基化。使用该催化系统,伯,仲和叔醇以及苯酚在室温下以高收率和短反应时间转化为它们相应的四氢吡喃基醚。对这种方法的化学选择性的研究表明,在仲,叔醇和苯酚存在下,伯醇的活性之间存在区别。这种杂化的催化剂可以重复使用几次,而不会损失其催化活性。版权所有©2016 John Wiley&Sons,Ltd.