Preparation of 5-Aryl-2-Alkyltetrazoles with Aromatic Aldehydes, Alkylhydrazine, Di-<i>tert</i>-butyl Azodicarboxylate, and [Bis(trifluoroacetoxy)iodo]benzene
作者:Taro Imai、Ryo Harigae、Katsuhiko Moriyama、Hideo Togo
DOI:10.1021/acs.joc.6b00606
日期:2016.5.6
directly prepared in good to moderate yields by the reaction of aromatic aldehydes with methylhydrazine and benzylhydrazine, followed by treatment with di-tert-butyl azodicarboxylate and [bis(trifluoroacetoxy)iodo]benzene in a mixture of dichloromethane and 2,2,2-trifluoroethanol at room temperature. The present method is a novel one-pot preparation of 5-aryl-2-methyltetrazoles and 5-aryl-2-benzyltetrazoles
通过芳族醛与甲基肼和苄基肼反应,然后用偶氮二羧酸二叔丁酯和[双在室温下在二氯甲烷和2,2,2-三氟乙醇的混合物中的(三氟乙酰氧基)碘]苯。本方法是在无过渡金属和温和条件下,通过[2N + 2N]组合,新颖地一锅制备5-芳基-2-甲基四唑和5-芳基-2-苄基四唑。