Reductive Azidation of Carbonyl Compounds via Tosylhydrazone Intermediates Using Sodium Azide
作者:José Barluenga、María Tomás-Gamasa、Carlos Valdés
DOI:10.1002/anie.201200313
日期:2012.6.11
be transformed into alkyl azides through a reductive coupling of the corresponding tosylhydrazones in a process that takes place simply in the presence of K2CO3, tetrabutylammonium bromide (TBAB), and NaN3 (top of scheme). The application of this methodology followed by the Cu‐catalyzed azide–alkyne cycloaddition allows the direct transformation of carbonyl compounds into triazoles (bottom of scheme)
简单而直接:可以通过在相应的甲苯磺酰nes的还原偶联反应中,简单地在K 2 CO 3,四丁基溴化铵(TBAB)和NaN 3的存在下,将醛和酮转化为烷基叠氮化物。 )。这种方法的应用,再加上铜催化的叠氮化物-炔烃环加成反应,可以使羰基化合物直接转化为三唑(方案底部)。