作者:Krithika Ganesh、Ganesh Sambasivam、Govindarajulu Gavara、Ramraj S、Gaikwad Rajendra、S. Karthikeyan
DOI:10.1039/d2ob01981g
日期:——
A facile one-pot, metal-free method for the synthesis of 2-aminobenzothiazoles was developed, which includes an initial reaction of electron-deficient 2-haloanilines with aromatic isothiocyanates and the subsequent intramolecular cyclization of the resulting thioureas through the SNAr mechanism. This one-pot, atom-economical, robust, and scalable method avoids the use of reagents such as acid chlorides
开发了一种简便的一锅法、无金属合成 2-氨基苯并噻唑的方法,包括缺电子 2-卤代苯胺与芳香族异硫氰酸酯的初始反应,以及随后通过 S N Ar 机制使所得硫脲发生分子内环化. 这种单锅、原子经济、稳健且可扩展的方法避免了使用难以处理的试剂,例如酰氯和 Lawesson 试剂。