An Efficient One-Pot Synthesis of Pyrano[3,2-c]quinolin-2,5-dione Derivatives Catalyzed by L-Proline
✍ Scribed by Zhu, Songlei; Wang, Jing; Xu, Zhou; Li, Jie
- Book ID
- 120282612
- Publisher
- Molecular Diversity Preservation International
- Year
- 2012
- Tongue
- English
- Weight
- 222 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1420-3049
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## Abstract A series of 3‐methyl‐1,4‐disubstituted‐4,5‐dihydro‐1__H__‐pyrazolo[3,4‐__b__]pyridine‐6(7__H__)‐ones was synthesized __via__ the three‐component reaction of aldehyde, 3‐methyl‐1‐phenyl‐1__H__‐pyrazol‐5‐amine, and Meldrum's acid catalyzed by L‐proline. This protocol has the advantages of
## Abstract L‐Proline is found to be an efficient catalyst for the synthesis of tetrahydrofuro[3,4‐__b__]quinoline‐1,8(3__H__,4__H__)‐dione derivatives. This protocol is novel and has the advantages of mild condition, high yield, and easy operation. J. Heterocyclic Chem., (2012).