Synthesis of substituted 4H-thiazolo[4,5-b][1]benzothiopyran-4-ones as possible schistosomicidal agents
✍ Scribed by Mohamed M. El-Kerdawy; Ali A. El-Emam; Hussein I. El-Subbagh; Elie Abushanab
- Book ID
- 104951006
- Publisher
- Springer Vienna
- Year
- 1989
- Tongue
- English
- Weight
- 290 KB
- Volume
- 120
- Category
- Article
- ISSN
- 0026-9247
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## Abstract For Abstract see ChemInform Abstract in Full Text.
One pot synthesis of fluorinated 4H-1,4-benzothiazines can be effected by the condensation and oxidative cyclization of substituted 2-aminobenzenethiols with B-diketone (pfluorobenzoylacetone) in DMSO. The reaction is believed to proceed via an enamino-ketone system. The structures have been confirm
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract magnified image A series of novel 4‐(4‐ethylphenyl)‐1‐substituted‐4__H__‐[1,2,4]triazolo[4,3‐__a__]quinazolin‐5‐ones were synthesized by the cyclization of 2‐hydrazino intermediate with various electrophile. The starting material 2‐hydrazino compound was synthesized from 2‐ethyl anilin