Abstract5‐Amino‐2,3,6,7‐tetrahydrothiocines were reacted with arylazides yielding 1‐aryl‐9a‐amino‐1,3a,4,5,7,8,9,9a‐octahydrothiocino[4,5‐d]‐1,2,3‐triazoles which could be deaminated to 1‐aryl‐1,4,5,7,8,9‐hexahydrothiocino‐[4,5‐d]‐1,2,3‐triazoles. Similarly, the above enamines yielded, with nitrile oxides, 3‐aryl‐9a‐amino‐3a,4,5,8,9,9a‐hexahydrothiocino[4,5‐d]isoxazoles which were transformed with acids into 3‐