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<b>Green and practical synthesis of benzopyran and 3-sunstituted coumarin derivatives by Brønsted acid ionic liquid [(CH<sub>2</sub>)<sub>4</sub>SO<sub>3</sub>HMIM][HSO<sub>4</sub>]</b>


Majid M. Heravi
Parvaneh Ansari
Parvaneh Ansari
Mina Saeedi
Mina Saeedi
Niloofar Tavakoli-Hosseini
Narges Karimi
Narges Karimi
Niloofar Tavakoli-Hosseini

Abstract

Different benzopyran and 3-substituted coumarin derivatives were synthesized by a green and practical procedure in the presence of catalytic amount of Brønsted acid ionic liquid (BAIL) [(CH2)4SO3HMIM][HSO4] in water.

KEY WORDS: Benzopyran derivatives, 3-Substituted coumarin derivatives, Brønsted acid ionic liquid, 1-(4-Sulfonic acid)butyl-3-methylimidazolium hydrogen sulfate

 

Bull. Chem. Soc. Ethiop. 2011, 25(2), 315-320. 

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eISSN: 1726-801X
print ISSN: 1011-3924