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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

✍ Scribed by Khodabakhsh Niknam; Farhad Panahi; Dariush Saberi; Molki Mohagheghnejad

Book ID
102343015
Publisher
Journal of Heterocyclic Chemistry
Year
2010
Tongue
English
Weight
215 KB
Volume
47
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

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Silica‐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).

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