Synthesis of 5H-Triazolo[1,5-d]- and 5H- Tetrazolo- [1,5-d]thieno[3,2-f]-1,4-diazepin-6(7H)-ones
✍ Scribed by C. J. Shishoo; M. B. Devani; G. V. Ullas; S. Ananthan; V. S. Bhadti
- Book ID
- 112128896
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1988
- Tongue
- English
- Weight
- 399 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0022-152X
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## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract The aza‐Wittig reactions of benzophenone‐, acetophenone‐ and benzaldehyde l‐[(triphenylphosphoranyl‐idene)amino]ethylidenehydrazones (4) with phthalic anhydride, 2,3‐dimethylmaleic anhydride and 7‐oxabi‐cyclo[2,2,l]hept‐5‐ene‐2,3‐dicarboxylic anhydride (**5a**) provide a new route to 5_
## Abstract Fused tricyclic 7‐phenyl‐5__H__‐thizolo[5,4‐__e__]pyrrolo[1,2‐__a__][1,4]diazepin‐10(9__H__)one (**10**) was prepared by thermolysis of 2‐phenyl‐4‐(1‐pyrrolylmethyl)thiazole‐5‐carbonyl azide (**9**) in acetic acid. In addition, starting from **10**, 7‐phenyl‐5__H__‐thiazolo [5,4‐__e__][