Efficient Synthesis of Ellagic Acid Salts Using Distillable Ionic Liquids

2011 ◽  
Vol 64 (12) ◽  
pp. 1624 ◽  
Author(s):  
Shahana A. Chowdhury ◽  
Pamela M. Dean ◽  
R. Vijayaraghavan ◽  
D. R. MacFarlane

A direct, one pot synthesis of an ellagic acid salt was achieved at room temperature by dimerization of ethyl gallate using N,N-dimethylammonium N′,N′-dimethylcarbamate, a distillable ionic liquid, as solvent.

2005 ◽  
Vol 83 (10) ◽  
pp. 1746-1751 ◽  
Author(s):  
Ganesan Karthikeyan ◽  
Paramasivan T Perumal

A facile enamination of 1,3-dicarbonyl compounds with amines has been developed that affords good to excellent yields of β-enamino esters and β-enaminones using Brønsted acidic ionic liquid 1-methylimidazolium trifluoroacetate ([Hmim]+Tfa–) at room temperature. This methodology has been extended for the synthesis of substituted pyridines in excellent yield by a one-pot, three-component reaction of 1,3-dicarbonyl compounds, ammonium acetate, and alkynone in the presence of [Hmim]+Tfa–.Key words: ionic liquid, β-enaminones, β-enamino esters, 1,3-dicarbonyl compounds, amines, pyridines.


ChemInform ◽  
2005 ◽  
Vol 36 (29) ◽  
Author(s):  
T. M. Potewar ◽  
R. N. Nadaf ◽  
Thomas Daniel ◽  
R. J. Lahoti ◽  
K. V. Srinivasan

ChemInform ◽  
2014 ◽  
Vol 45 (49) ◽  
pp. no-no
Author(s):  
Riyaj S. Tamboli ◽  
Rajani Giridhar ◽  
Hemant M. Mande ◽  
Shailesh R. Shah ◽  
Mange Ram Yadav

2009 ◽  
Vol 62 (4) ◽  
pp. 322 ◽  
Author(s):  
Anil Kumar ◽  
M. Sudershan Rao ◽  
Israr Ahmad ◽  
Bharti Khungar

Ytterbium triflate immobilized in the ionic liquid [bmim][BF4] catalyzes the three-component coupling of aromatic aldehydes, enolizable ketones, and acetonitrile in the presence of acetyl chloride at room temperature to afford β-acetamido ketones in good yields. The catalyst can be recovered and recycled for subsequent reactions without any appreciable loss of efficiency.


RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44604-44609 ◽  
Author(s):  
Pranab Jyoti Das ◽  
Jesmin Begum

Microwave assisted solvent free one pot synthesis of formazans, catalysed by ionic liquid is reported for the first time.


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