Thieno[2,3-d]thiazoles were prepared by reaction of 4-chlorothiazole-5carbaldehydes or 4-chlorothiazole-5-carbonittiles with either ethyl 2-mercaptoacetate or 2mercaptoacetamide. The 6-aminothieno[2.3-&hiazole-5-carboxamides obtained were converted into the corresponding thiazolo[4',5';4,5]thieno[3,
✦ LIBER ✦
A FACILE SYNTHESIS OF ISOXAZOLO [5′,4′:4,5]THIAZOLO[3,2- a ]THIENO PYRIMIDINES A NEW RING SYSTEM
✍ Scribed by Abdel-fattah, A. M.; Aly, As.; Gad, F. A.; Zaki, M. E. A.; El-gazzar, A. B. A.
- Book ID
- 120303204
- Publisher
- Taylor and Francis Group
- Year
- 1998
- Tongue
- English
- Weight
- 764 KB
- Volume
- 141
- Category
- Article
- ISSN
- 1042-6507
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## Abstract Sixteen 5‐alkylamino‐3,6‐diaryl‐2‐thioxo‐2,3,6,7‐tetrahydrothiazolo[4,5‐d]pyrimidin‐7‐ones **4a**, **4b**, **4c**, **4d**, **4e**, **4f**, **4g**, **4h**, **4i**, **4j**, **4k**, **4l**, **4m**, **4n**, **4o**, **4p** were designed and easily synthesized via a tandem aza‐Wittig reaction