New route to 2-cyanobenzothiazoles via N-arylimino-1,2,3-dithiazoles †
作者:Thierry Besson、Marie-Joëlle Dozias、Jérôme Guillard、Charles W. Rees
DOI:10.1039/a807899h
日期:——
N-Arylimino-1,2,3-dithiazole derivatives 2 of 2-bromoanilines are converted in high yield into 2-cyanobenzothiazoles 3 by heating or, more rapidly, by focused microwave irradiation at atmospheric pressure, in pyridine containing cuprous iodide.