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.

Efficient One-Pot Synthesis of 12-Aryl-8,9,10,12-Tetrahydrobenzo[a]Xanthen-11-one Derivatives Using NaHSO4 as Catalyst in Ionic Liquid

2010 ◽  
Vol 113-116 ◽  
pp. 1993-1996 ◽  
Author(s):  
Hong Jun Zang ◽  
Yong Zhang ◽  
Bo Wen Cheng
Keyword(s):  
Ionic Liquid ◽  
Reaction Time ◽  
Environmentally Friendly ◽  
Aromatic Aldehydes ◽  
One Pot ◽  
Short Reaction Time ◽  
One Pot Synthesis ◽  
Three Component Coupling

A series of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-one derivatives were synthesized via the three-component coupling from aromatic aldehydes, 2-naphthol and 5,5–dimethylcyclohexane -1,3-dione catalyzed by NaHSO4 in ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]BF4). The reaction proceeded with good yields under short reaction time. The NaHSO4 was not expensive and the ionic liquid could be reused. The proposed method is efficient and environmentally friendly.

One-pot multicomponent synthesis of β-acetamidoketones catalysed by pTSA1

2007 ◽  
Vol 85 (7-8) ◽  
pp. 479-482 ◽  
Author(s):  
Biswanath Das ◽  
Kongara Ravinder Reddy ◽  
Yallamalla Srinivas ◽  
Rathod Aravind Kumar
Keyword(s):  
Multicomponent Reaction ◽  
Acetyl Chloride ◽  
Reaction Times ◽  
Aromatic Aldehydes ◽  
Catalytic Amount ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
High Yields ◽  
Three Component Coupling

A catalytic amount of pTSA has been found to be effective to carry out a one-pot three-component coupling of aromatic aldehydes, enolizable ketones or ketoesters, and acetonitrile in the presence of acetyl chloride to afford β-acetamidoketones in high yields. Short reaction times and inexpensive catalyst are main advantages of this protocol.Key words: β-acetamidoketone, pTSA, multicomponent reaction, diastereoselectivity.

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.

Two inorganic–organic hybrid silver-polyoxometalates as reusable catalysts for one-pot synthesis of propargylamines via a three-component coupling reaction at room temperature

CrystEngComm ◽  
2020 ◽  
Vol 22 (15) ◽  
pp. 2642-2648 ◽  
Author(s):  
Ming-Yu Dou ◽  
Xian-Qiang Huang ◽  
Guo-Yu Yang
Keyword(s):  
Room Temperature ◽  
Coupling Reaction ◽  
One Pot ◽  
Catalytic Activities ◽  
Organic Hybrid ◽  
One Pot Synthesis ◽  
Three Component Coupling

Two silver-polyoxometalates [Ag3L2(DMSO)2][PW12O40]·4DMSO (1) and [(Ag2L2)2][SiW12O40]·10DMSO·2H2O (2) are made and 1 shows good catalytic activities for three-component coupling reaction.

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

scholarly journals Three-Component One-Pot Synthesis of Novel Benzo[b]1,8-naphthyridines Catalyzed by Bismuth(III) Chloride

2008 ◽  
Vol 2008 ◽  
pp. 1-4
Author(s):  
Tangali R. Ravikumar Naik ◽  
Halehatty S. Bhojya Naik ◽  
Halehatty R. Prakasha Naik ◽  
P. J. Bindu
Keyword(s):  
Room Temperature ◽  
Environmentally Friendly ◽  
Aromatic Aldehydes ◽  
One Pot ◽  
One Pot Synthesis ◽  
High Yields

A novel and efficient three-component one-pot synthesis of benzo[b]1,8-naphthyridines by 2-amino-4-methylquinoline, aromatic aldehydes, and malononitrile was done. The reaction was catalyzed by an acidic Bismuth(III) chloride, functionalized Bismuth(III) chloride, at room temperature to give various benzo[b]1,8-naphthyridines in high yields. The Bismuth(III) chloride is an environmentally friendly catalyst.

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