| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5224800 | Tetrahedron | 2008 | 8 Pages |
Abstract
The reaction of β-chloroacrolein with 1 equiv of 2-aminophenol in DMF proceeds smoothly to afford 11-hydroxy derivative of chromenoquinoline in good yield. This single pot method allows for a rapid access to a variety of chromenoquinolines or oxepinoquinolines depending on the nature of β-chloroacrolein used. The structures were established by spectroscopic data and further confirmed by X-ray diffraction analysis. A plausible mechanism for this reaction has been proposed. The reaction seemed to proceed via a chloroimine species, whose intermediacy has been established, followed by the construction of the fused quinoline ring.
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Physical Sciences and Engineering
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