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Silica‐Bonded N ‐Propyl Sulfamic Acid: A Recyclable Catalyst for the Synthesis of 1,8‐Dioxo‐decahydroacridines, 1,8‐Dioxo‐octahydroxanthenes and Quinoxalines
Author(s) -
Rashedian Fatemeh,
Saberi Dariush,
Niknam Khodabakhsh
Publication year - 2010
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201000139
Subject(s) - sulfamic acid , chemistry , catalysis , solid acid , quinoxaline , ethanol , organic chemistry , nuclear chemistry , medicinal chemistry
Silica bonded N ‐propyl sulfamic acid ( SBNPSA ) is employed as a solid acid catalyst for the synthesis of 1,8‐dioxo‐decahydroacridines and 1,8‐dioxo‐octahydroxanthenes in high yields and short reaction times in ethanol under reflux conditions. Also, this solid acid catalyzed the reaction of 1,2‐diamino compounds with 1,2‐dicarbonyl compounds for the synthesis of quinoxaline derivatives at room temperature. The catalyst could be recycled and reused several times without any loss of efficiency.