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A straightforward synthesis of pyrimido[4,5-b]quinoline derivatives assisted by microwave irradiation

✍ Scribed by Jairo Quiroga; Jorge Trilleras; Braulio Insuasty; Rodrigo Abonía; Manuel Nogueras; Antonio Marchal; Justo Cobo

Book ID: 104097312
Publisher: Elsevier Science
Year: 2010
Tongue: French
Weight: 312 KB
Volume: 51
Category: Article
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2009.12.114

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✦ Synopsis

Several pyrimido [4,5-b]quinolines, flavin analogues, have been prepared by assisted microwave intramolecular cyclization of N 4 -substituted-2,4-diamino-6-chloropyrimidine-5-carbaldehydes. The reaction takes place with hydrolysis of amino-group and chlorine. Particularly valuable features of this method included the broader substrate scope and operational simplicity as well as increased safety for smallscale high-speed synthesis.

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