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Halogen-free room-temperature brønsted acidic ionic liquid [Hmim] + HSO 4 - as a recyclable green "dual reagent" catalysis for the synthesis of triarylmethanes (TRAM s) ;
, A DATTA, P K TAPASWI
Published in -
2012
Volume: 42
   
Issue: 16
Pages: 2453 - 2463
Abstract
The halogen-free Brnsted acidic ionic liquid methylimidazolium hydrogen sulfate ([Hmim] + HSO 4 -) acts as a very efficient catalyst for the one-pot, two-component Baeyer condensation of a variety of aromatic aldehydes with dimethyl or diethyl aniline at room temperature. This green reagent behaves as both catalyst and solvent; that is, it exhibits dual-reagent catalysis. The room-temperature acidic ionic liquid could be recycled several times with almost no loss in the yield of the reaction. This is the first report of the Baeyer synthesis with a halogen-free ionic liquid. © 2012 Taylor and Francis Group, LLC.
About the journal
JournalSynthetic Communications
Publisher-
ISSN0039-7911
Open AccessNo