In our previous paper, we pointed out that bis-(4-substituted-2-amino-5-thiazolyl) sulfides could be isolated as a by-product from the 4-substituted-2-aminothiazole preparation developed by Dodson and King. 4 We should like to report at this time that the easily reducible condensation product of monochloroacetone and 2-amino-4-methylthiazole6 appears to be identical with another byproduct formed in the preparation of 2-amino-4- ...
