Synthesis of<i>endo</i>- and<i>exo</i>-<i>N</i>-Protected 5-Arylated 2-Aminothiazoles through Direct Arylation: An Efficient Route to Cell Differentiation Accelerators
作者:Toan Dao-Huy、Birgit J. Waldner、Laurin Wimmer、Michael Schnürch、Marko D. Mihovilovic
DOI:10.1002/ejoc.201500283
日期:2015.7
An improved protocol for the direct arylation of N-phenyl-N-benzyl(thiazol-2-yl)amine by using aryl bromides as aryl donors is reported. The procedure was compared with a previously reported protocol in which aryl iodides were used as arylating agents. The improved direct arylation protocol was applied to structurally isomeric and nonaromatic 3-benzyl-N-phenylthiazol-2(3H)-imine. The two substrates
报告了使用芳基溴作为芳基供体直接芳基化 N-苯基-N-苄基(噻唑-2-基)胺的改进方案。该程序与之前报道的使用芳基碘化物作为芳基化剂的方案进行了比较。改进的直接芳基化方案应用于结构异构和非芳香族 3-苄基-N-苯基噻唑-2(3H)-亚胺。用于直接芳基化的两种底物是从共同的起始原料 N-苯基(噻唑-2-基)胺获得的,该原料通过使用两组反应条件在环外或环内氮上进行区域选择性苄化。对于异构的非芳香族 3-苄基-N-苯基噻唑-2(3H)-亚胺的芳基化,可以在 5 位实现独特的区域选择性。