Photorearrangements of 2,5- and 2,4-diphenylthiazole
Abstract
2,5-Diphenylthiazole (I) is converted into 3,4-diphenylisothiazole (III) and 4,5-diphenylthiazole (IV), and 2,4-diphenylthiazole (II) into 3,5-diphenylisothiazole (VI), as the major photochemical products, respectively, by u.v. irradiation in benzene.