Summary It has been demonstrated that acetophenone, propiophenone, m- nitroacetophenone, acetone and ethyl acetoacetate react directly with 1.0 mole of a halogen and 2.0 moles of thiourea to give in excellent yield, 2-amino-4-phenylthiazole, 2-amino-4- phen 1-5-methylthiazole, 2-amino-4-(3-nitrophenylf-thiazole, 2-amino-4-methylthia~ le~ and 2-amino-4-methyl-5-carbetho~ ythiazole~ respectively. EVANSTON, ILLINOIS RECEIVED ...
