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Molecules 2009, 14(5), 1915-1926; doi:10.3390/molecules14051915
Communication
Silica Bonded S-Sulfonic Acid: A Recyclable Catalyst for the Synthesis of Quinoxalines at Room Temperature
Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran
* Author to whom correspondence should be addressed.
Received: 26 March 2009; in revised form: 27 April 2009 / Accepted: 30 April 2009 / Published: 22 May 2009
Download PDF Full-Text [209 KB, uploaded 22 May 2009 15:22 CEST]
Abstract: The reaction of 3-mercaptopropylsilica (MPS) and chlorosulfonic acid in chloroform afforded silica bonded S-sulfonic acid (SBSSA), which was used as a catalyst for the room temperature synthesis of quinoxaline derivatives from 1,2-diamino compounds and 1,2-dicarbonyl compounds. The catalyst could be recycled and reused several times without any loss of efficiency.
Keywords: silica bonded S-sulfonic acid; quinoxalines; 1; 2-diamino compounds; 1; 2-dicarbonyl compounds
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MDPI and ACS Style
Niknam, K.; Saberi, D.; Mohagheghnejad, M. Silica Bonded S-Sulfonic Acid: A Recyclable Catalyst for the Synthesis of Quinoxalines at Room Temperature. Molecules 2009, 14, 1915-1926.
AMA StyleNiknam K., Saberi D., Mohagheghnejad M. Silica Bonded S-Sulfonic Acid: A Recyclable Catalyst for the Synthesis of Quinoxalines at Room Temperature. Molecules. 2009; 14(5):1915-1926.
Chicago/Turabian StyleNiknam, Khodabakhsh; Saberi, Dariush; Mohagheghnejad, Maleki. 2009. "Silica Bonded S-Sulfonic Acid: A Recyclable Catalyst for the Synthesis of Quinoxalines at Room Temperature." Molecules 14, no. 5: 1915-1926.
Molecules
EISSN 1420-3049
Published by MDPI Publishing, Basel, Switzerland
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