A total of 14 kinds of 2-phenoxy, 2-allyloxy, 2-guanidino and 2-anilido compounds were synthesized from 2-chloro-6-nitrobenzothiazole. By reacting dimethyl sulfate on 2-amino-6-R-benzothiazoles (where R=Cl, NO2, OCH3 and OC2H5), the corresponding 2-amino-3-methyl-6-R-2, 3-dihydrobenzothiazoles were prepared.
