Title of article :
Effects of substituent and catalyst on the intramolecular Povarov reaction—synthesis of chromenonaphthyridines
Author/Authors :
Maiti، نويسنده , , Sourav and Panja، نويسنده , , Suman Kalyan and Sadhukhan، نويسنده , , Koushik and Ghosh، نويسنده , , Jaydip and Bandyopadhyay، نويسنده , , Chandrakanta Bandyopadhyay، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2012
Abstract :
2-(N-Alkenyl-N-aryl)aminochromone-3-carbaldehyde undergoes intramolecular Povarov reaction with aromatic amines in the presence of Ph3P·HClO4 to produce chromenonaphthyridine. The effects of substituent and catalyst have been studied. The substituent on the alkenyl part of aminochromone controls the mode of reaction as well as the stereochemistry of the product.
Keywords :
Naphthyridine , 2-Aminochromone-3-carbaldehyde , triphenylphosphonium perchlorate , Povarov reaction , Chromone , 1-Benzopyran
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
