Facile One-Pot Synthesis of<i>N</i>-Alkylated Benzimidazole and Benzotriazole from Carbonyl Compounds
作者:Xu Meng、Xiaolong Li、Wenlin Chen、Yuanqing Zhang、Wen Wang、Jinying Chen、Jinli Song、Huijie Feng、Baohua Feng
DOI:10.1002/jhet.1616
日期:2014.3
An efficient one‐pot N‐alkylation of benzimidazole and benzotriazole from carbonyl compounds and tosylhydrazide has been accomplished via copper powder‐catalyzed N—H bond insertion affording N‐alkylated products in good yields. The reaction can tolerate a wide range of carbonyl compounds, such as aryl, alkyl, heterocyclic and α,β‐unsaturated ketones, and aldehydes.
通过铜粉催化的NH键插入,可以有效地从羰基化合物和甲苯磺酰肼中实现苯并咪唑和苯并三唑的单锅高效N烷基化,从而获得高收率的N烷基化产物。该反应可耐受各种羰基化合物,例如芳基,烷基,杂环和α,β-不饱和酮和醛。