## Abstract A series of furo[3′,4′:5,6]pyrido[2,3‐__d__]pyrimidine and indeno[2′,1′:5,6]pyrido[2,3‐__d__]pyrimidine derivatives were synthesized by three‐component reactions involving an aldehyde, 2,6‐diaminopyrimidine‐4(3__H__)‐one, and either tetronic acid or indane‐1,3‐dione in water, under micr
✦ LIBER ✦
A Simple Synthesis of Furo[3′,4′:5,6]pyrido[2,3-d]pyrimidine Derivatives Through Multicomponent Reactions in Water.
✍ Scribed by Shu-Jiang Tu; Yan Zhang; Hong Jiang; Bo Jiang; Jun-Yong Zhang; Run-Hong Jia; Feng Shi
- Publisher
- John Wiley and Sons
- Year
- 2007
- Weight
- 25 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0931-7597
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## 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