scholarly journals β-Amino functionalization of cinnamic Weinreb amides in ionic liquid

2016 ◽  
Vol 12 ◽  
pp. 2372-2377 ◽  
Author(s):  
Yi-Ning Wang ◽  
Guo-Xiang Sun ◽  
Gang Qi
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Metal Catalysts ◽  
Inert Gas ◽  
One Pot ◽  
Weinreb Amides ◽  
One Pot Synthesis ◽  
Gas Atmosphere ◽  
Amino Functionalization ◽  
Reaction Media

2-Ns-Protected β-amino Weinreb amides were synthesized by aminochlorination of α,β-unsaturated Weinreb amides in an ionic liquid, 1-n-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([BMIM][NTf2]). Processed without the use of metal catalysts or the need of an inert gas atmosphere, the presented process can be readily performed as a one-pot synthesis at room temperature. Moreover, the preparation has the distinct advantages of the use of 2-NsNCl2 as an inexpensive and stable nitrogen/halogen source and the ionic liquid as a recyclable reaction media. Nine examples were examined, and modest to good isolated chemical yields (40–83%) were obtained.

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
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Ellagic Acid ◽  
Room Temperature ◽  
Acid Salt ◽  
Ethyl Gallate ◽  
Efficient Synthesis ◽  
One Pot ◽  
One Pot Synthesis ◽  
Acid Salts

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.

ChemInform Abstract: One-Pot Synthesis of Quinoxaline-2-carboxylate Derivatives Using Ionic Liquid as Reusable Reaction Media.

ChemInform ◽  
2010 ◽  
Vol 41 (48) ◽  
pp. no-no
Author(s):  
H. M. Mershram ◽  
P. Ramesh ◽  
G. Santosh Kumar ◽  
B. Chennakesava Reddy
Keyword(s):  
Ionic Liquid ◽  
One Pot ◽  
One Pot Synthesis ◽  
Reaction Media

A Novel One-Pot Synthesis of 2-Aryl-4(3H)-quinazolinones Using Room Temperature Ionic Liquid as Reaction Medium as well as Promoter.

ChemInform ◽  
2005 ◽  
Vol 36 (29) ◽  
Author(s):  
T. M. Potewar ◽  
R. N. Nadaf ◽  
Thomas Daniel ◽  
R. J. Lahoti ◽  
K. V. Srinivasan
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Reaction Medium ◽  
Room Temperature Ionic Liquid ◽  
One Pot ◽  
One Pot Synthesis

Ionic liquid coated sulfonated carbon@titania composites for the one-pot synthesis of indeno[1,2-b]indole-9,10-diones and 1H-pyrazolo[1,2-b]phthalazine-5,10-diones in aqueous media

2017 ◽  
Vol 41 (13) ◽  
pp. 5521-5532 ◽  
Author(s):  
Manmeet Kour ◽  
Madhvi Bhardwaj ◽  
Harsha Sharma ◽  
Satya Paul ◽  
James H. Clark
Keyword(s):  
Ionic Liquid ◽  
Catalytic System ◽  
Aqueous Media ◽  
Acid Catalyst ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
One Pot Synthesis ◽  
Brønsted Acid Catalyst ◽  
The One ◽  
Reaction Media

A novel and efficient ionic liquid based solid Bronsted acid catalyst has been designed and explored as a recyclable catalytic system for multicomponent synthesis in an aqueous reaction media.

ChemInform Abstract: Room-Temperature Ionic Liquid-DMSO Promoted and Improved One-Pot Synthesis of 5,6-Diaryl-1,2,4-triazines.

ChemInform ◽  
2014 ◽  
Vol 45 (49) ◽  
pp. no-no
Author(s):  
Riyaj S. Tamboli ◽  
Rajani Giridhar ◽  
Hemant M. Mande ◽  
Shailesh R. Shah ◽  
Mange Ram Yadav
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Room Temperature Ionic Liquid ◽  
One Pot ◽  
One Pot Synthesis

One-pot synthesis of quinoxaline-2-carboxylate derivatives using ionic liquid as reusable reaction media

2010 ◽  
Vol 51 (33) ◽  
pp. 4313-4316 ◽  
Author(s):  
H.M. Meshram ◽  
P. Ramesh ◽  
G. Santosh Kumar ◽  
B. Chennakesava Reddy
Keyword(s):  
Ionic Liquid ◽  
One Pot ◽  
One Pot Synthesis ◽  
Reaction Media

An Efficient and Simple One-Pot Synthesis of ?-Acetamido Ketones Catalyzed by Ytterbium Triflate in Ionic Liquid

2009 ◽  
Vol 62 (4) ◽  
pp. 322 ◽  
Author(s):  
Anil Kumar ◽  
M. Sudershan Rao ◽  
Israr Ahmad ◽  
Bharti Khungar
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Acetyl Chloride ◽  
Aromatic Aldehydes ◽  
One Pot ◽  
One Pot Synthesis ◽  
Ytterbium Triflate ◽  
Three Component Coupling

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.

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