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ChemInform Abstract: A Facile and Efficient Synthesis of 2-Amino-3-cyano-4H-chromenes and Tetrahydrobenzo[b]pyrans Using 2,2,2-Trifluoroethanol as a Metal-Free and Reusable Medium.

โœ Scribed by Khaksar, Samad; Rouhollahpour, Ahmad; Talesh, Saeed Mohammadzadeh


Book ID
118755784
Publisher
John Wiley and Sons
Year
2012
Weight
33 KB
Volume
43
Category
Article
ISSN
0931-7597

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One-pot synthesis of 2-amino-3-cyano-4-a
โœ Abolghasem Davoodnia; Sadegh Allameh; Samineh Fazli; Niloofar Tavakoli-Hoseini ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› Versita ๐ŸŒ English โš– 255 KB

## Abstract A convenient method for the synthesis of tetrahydrobenzo[b]pyrans by a one-pot three-component cyclocondensation of dimedone, aryl aldehydes, and malononitrile in water using silica gel-supported polyphosphoric acid (PPA-SiO2) as an efficient and reusable catalyst is described. The pres