## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
N-acetylchloroacetamide in the synthesis of functionally-substituted pyrido[3′,2′∶4,5]-thieno[3,2-d]pyrimidin-4(3H)-ones
✍ Scribed by V. L. Ivanov; V. A. Artemov; A. M. Shestopalov; V. P. Litvinov
- Book ID
- 105528593
- Publisher
- Springer US
- Year
- 1997
- Tongue
- English
- Weight
- 209 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0009-3122
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## Abstract magnified image The thienopyridine derivative **2**, obtained from reaction of acetoacetic ester with **1** in the presence of tin tetrachloride, was treated with triphenylphosphine in hexachloroethane and Et~3~N to give iminophosphorane **3**. Iminophosphorane **3** reacted with pheny
## Abstract A series of new 2‐substituted 3‐(4‐chlorophenyl)‐5,8,9‐trimethylthieno[3′,2′: 5,6]pyrido[4,3‐__d__]pyrimidin‐4(3__H__)‐ones **8** were synthesized __via__ an aza‐__Wittig__ reaction. Phosphoranylideneamino derivatives **6a** or **6b** reacted with 4‐chlorophenyl isocyanate to give carbo
## Abstract magnified image The carbodiimides **5**, obtained from reactions of iminophosphorane **4** with aromatic isocyanates, reacted with amines, phenols or ROH to give 2‐substituted 5,6,7,8‐tetrahydropyrido[4′,3′:4,5]thieno[2,3‐__d__]‐pyrimidin‐4(3__H__)‐one 7 in the presence of catalytic am