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Silica‐bonded S ‐sulfonic acid as recyclable catalyst for the synthesis of 1,8‐dioxo‐decahydroacridines and 1,8‐dioxo‐octahydroxanthenes
Author(s) -
Niknam Khodabakhsh,
Panahi Farhad,
Saberi Dariush,
Mohagheghnejad Molki
Publication year - 2010
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.303
Subject(s) - chemistry , xanthene , sulfonic acid , catalysis , acridine , acridine derivatives , organic chemistry , combinatorial chemistry , polymer chemistry , stereochemistry
AbstractSilica‐bonded S ‐sulfonic acid (SBSSA) has been found to be an efficient catalyst for the synthesis of 1,8‐dioxo‐decahydroacridines and 1,8‐dioxo‐octahydroxanthenes in excellent yields. The former have been synthesized from aromatic aldehydes, amines, and 5,5‐dimethyl‐1,3‐cyclohexanedione, whereas the latter from this mixture without amines. The method is an easy access to functionalized acridine and xanthene derivatives. The catalyst can be reused. J. Heterocyclic Chem., (2010).