ChemInform Abstract: Synthesis and Photo
โ
Y. EL-AHMAD; J.-D. BRION; P. REYNAUD; D. AVERBECK; S. AVERBECK
๐
Article
๐
2010
๐
John Wiley and Sons
โ 30 KB
๐ 1 views
Synthesis and Photobiological Activity of N-Substituted 2-Oxo-2H-1benzopyran-3-(thio)carboxamides. -Piperidine-catalyzed condensation of benzaldehydes (I) with the malonic derivatives (II) gives a variety of polyfunctional coumarins ( III) (12 examples). They react readily with methyl iodide to the