An efficient synthesis of pyrimido[4,5-b]quinoline derivatives via three-component reaction in aqueous media
✍ Scribed by Da-Qing Shi; Li-Hui Niu; Hao Yao; Hong Jiang
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 2009
- Tongue
- English
- Weight
- 116 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0022-152X
- DOI
- 10.1002/jhet.57
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✦ Synopsis
Abstract
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A series of pyrimido[4,5‐b]quinoline derivatives was synthesized by three‐component reaction of 6‐aminopyrimidine, aromatic aldehydes and 1,3‐cyclohexanedione or 5,5‐dimethyl‐1,3‐cyclohexanedione in aqueous media in the presence of triethylbenzylammonium chloride. This protocol has the advantages of higher yields, lower lost, easy work‐up, and environmentally friendly procedure. J. Heterocyclic Chem., 46, 237 (2009).
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