An environmentally benign procedure for the synthesis of substituted 2-thiobenzothiazoles, 2-thiobenzoxazoles, 2-thiobenzimidazoles, and 1,3-oxazolopyridine-2-thiols

1. Deligeorgiev, T.G.
2. Kaloyanova, S.S.
3. Lesev, N.Y.
4. Vaquero, J.J.