A Clean One-pot Synthesis of Tetrahydrobenzo[b]pyran Derivatives Catalyzed by Hexadecyltrimethyl Ammonium Bromide in Aqueous Media

Abstract An efficient and convenient approach to the synthesis of 2-amino-3-cyano-4-aryl-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetra­hydrobenzo[B]pyran derivatives using hexadecyltrimethyl ammonium bromide (HTMAB) as the catalyst (10 mol%) is described. This method provides several advantages such as neutra...

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Bibliographic Details
Published in:Synlett 2004-04, Vol.2004 (5), p.0871-0873
Main Authors: Jin, Tong-Shou, Wang, Ai-Qing, Wang, Xin, Zhang, Jian-She, Li, Tong-Shuang
Format: Article
Language:English
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Summary:Abstract An efficient and convenient approach to the synthesis of 2-amino-3-cyano-4-aryl-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetra­hydrobenzo[B]pyran derivatives using hexadecyltrimethyl ammonium bromide (HTMAB) as the catalyst (10 mol%) is described. This method provides several advantages such as neutral conditions, high yields and simple work-up procedure, in addition water was chosen as a green solvent.
ISSN:0936-5214
1437-2096
DOI:10.1055/s-2004-820025