Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5272368 | Tetrahedron Letters | 2009 | 4 Pages |
Abstract
2-(Arylamino)-4-oxo-4H-chromene-3-carbaldehyde 3 (R2Â =Â aryl) produces 12H-chromeno[2,3-b]quinolin-12-one 4 when treated with sarcosine, piperidine or diethylamine, but produces 3,3â²-methylenebis(2-arylamino-4H-chromen-4-one) 8 when treated with the same amine in the presence of an excess of formaldehyde. Compound 3 (R2Â =Â alkyl) was found to be less reactive than the N-aryl analogues towards the deformylative Mannich-type reaction.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Sourav Maiti, Suman Kalyan Panja, Chandrakanta Bandyopadhyay,