Fused thiazoles from 3-amino-2-thioxo-2,3-dihydrothiazoles: Synthesis of mesoionic thiazolo[2,3-b]-1,3,4-thiadiazoles and 2,3-dihydro-4H-thiazolo[2,3-b][1,3,4]thiadiazin-5-ium derivatives

1. Molina, P.
2. Arques, A.
3. Velasco, M.D.
4. Villalgordo, J.M.