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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 36, 2006 - Issue 14
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Original Articles

Clean, One‐Pot Synthesis of Naphthopyran Derivatives in Aqueous Media

Tong‐Shou Jin Department of Chemistry, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaCorrespondence[email protected]
,
Jian‐She Zhang Department of Chemistry, College of Chemistry and Environmental Science, Hebei University, Baoding, China
,
Li‐Bin Liu Department of Chemistry, College of Chemistry and Environmental Science, Hebei University, Baoding, China
,
Ai‐Qing Wang Department of Chemistry, College of Chemistry and Environmental Science, Hebei University, Baoding, China
&
Tong‐Shuang Li Department of Chemistry, College of Chemistry and Environmental Science, Hebei University, Baoding, China
Pages 2009-2015 | Received 02 Nov 2005, Published online: 20 Aug 2006
 
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Abstract

A general and practical one‐pot synthesis of naphthopyran derivatives using hexadecyltrimethylammonium bromide (HTMAB) as catalyst (10 mol%) is described. This method provides several advantages such as neutral conditions, high yields and simple workup procedure. The catalyst is low cost, facile, active, environmentally friendly, and reusable. In addition, water is chosen as a green solvent.

Acknowledgments

This project was supported by the National Natural Science Foundation of China (29872011), Educational Ministry of China, Educational Department of Hebei Province (990104), and Science and Technology Commission of Hebei Province.

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