Tetrahedron p. 10485 - 10496 (1996)
Update date:2022-08-05
Topics:
Sarhan, Abd El-Wareth A.O.
El-Sherief, Hasan A.H.
Mahmoud, Abdalla M.
2-Mercaptobenzimidazole (1) reacts with aromatic ketones 2a-d in acidified acetic acid giving 2-benzimidazolylthioacetophenones 3a-d, which on cyclization yield thiazolo[3,2-a]-benzimidazoles 4a-d. Acetylation of 3a,d gave the N-acetyl derivatives 5a,d. C
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(1996)
