Synthesis of naphthoxazinone derivatives using silica-bonded S-sulfonic acid as catalyst under solvent-free conditions, By Khodabakhsh Niknam

Research

Title	Synthesis of naphthoxazinone derivatives using silica-bonded S-sulfonic acid as catalyst under solvent-free conditions
Type	Article
Keywords	—
Journal	JOURNAL OF CHEMICAL SCIENCES
DOI	—
Researchers	Khodabakhsh Niknam (First researcher) ,

Abstract

Silica-bonded S-sulfonic acid is employed as a recyclable catalyst for the synthesis of naphthoxazinone derivatives from the reaction of ?-naphthol, aromatic aldehydes and urea at 150?C under solvent-free conditions. The heterogeneous catalyst was recycled for five runs after the reaction of ?-naphthol, benzaldehyde and urea without losing its catalytic activity.