反应详情

To a stirred suspension of tetrahydro-3,5-bis-(4-methylphenylmethylene)-4H-thiopyran-4-one (5 gm; 15.6 mmole) in acetone (150 ml) is added a freshly filtered solution of 2-amino-2-thiazoline (1.9 gm, 18.6 mmole) in acetone (100 ml).