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- Title
A Facile Synthesis of Benzo[ h]quinolines via Silica- TsOH-P<sub>2</sub>O<sub>5</sub> Promoted Condensation of 1-Naphthylamines with 1,3-Diketones under Solvent Free Conditions.
- Authors
Zhu, Chuanlei; Guo, Ruiqiang; Sheng, Zhe; Li, Yanzhe; Chu, Changhu
- Abstract
A facile synthesis of benzo[ h]quinolines has been developed via improved Combes reaction. A combination of silica gel, p-toluenesulfonic acid and phosphorus pentoxide was utilized to promote the condensation of 1-naphthylamines with 1,3-diketones under solvent free conditions. In this case, silica gel was used as reaction media, p-toluenesulfonic acid and phosphorus pentoxide were acted as catalyst and dehydrating agent, respectively.
- Subjects
QUINOLINE; CHEMICAL synthesis; KETONES; NAPHTHYLAMINES; RING formation (Chemistry); ALDEHYDES
- Publication
Chinese Journal of Chemistry, 2017, Vol 35, Issue 10, p1595
- ISSN
1001-604X
- Publication type
Article
- DOI
10.1002/cjoc.201700128