ChemInform Abstract: Supported L-Pyrrolidine-2-carboxylic Acid-4-hydrogen Sulfate on Silica Gel as an Economical and Efficient Catalyst for the One-Pot Preparation of β-Acetamido Ketones via a Four-Component Condensation Reaction.

ChemInform ◽  
2014 ◽  
Vol 45 (38) ◽  
pp. no-no
Author(s):  
Arash Ghorbani-Choghamarani ◽  
Parisa Zamani
Keyword(s):  
Carboxylic Acid ◽  
Silica Gel ◽  
Condensation Reaction ◽  
Hydrogen Sulfate ◽  
One Pot ◽  
Efficient Catalyst ◽  
The One

scholarly journals Leucine: green and efficient catalyst for the synthesis of 4H-chromenes

2017 ◽  
Vol 10 (9) ◽  
pp. 3197-3202 ◽  
Author(s):  
Davood Azarifar ◽  
Younes Abbasi ◽  
Omolbanin Badalkhani
Keyword(s):  
Amino Acid ◽  
Condensation Reaction ◽  
Reaction Times ◽  
Aromatic Aldehydes ◽  
One Pot ◽  
Efficient Catalyst ◽  
Naturally Occurring ◽  
The One ◽  
High Yields ◽  
Work Up

Leucine, a naturally occurring α-amino acid, has been found as an effective catalyst to effect the one-pot three-component condensation reaction between aromatic aldehydes, malononitrile and 5,5-dimethyl-1,3-cyclohexanedione (dimedone). Various 2-amino-4-aryl-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile derivatives are conveniently prepared by these reactions in excellent yields. High yields, short reaction times, simple work-up, use of green and naturally occurring catalyst and solvent are the main merits of the present protocol. 

Zinc oxide as an economical and efficient catalyst for the one-pot preparation of β-acetamido ketones via a four-component condensation reaction

2007 ◽  
Vol 48 (10) ◽  
pp. 1729-1734 ◽  
Author(s):  
Malek Taher Maghsoodlou ◽  
Asadollah Hassankhani ◽  
Hamid Reza Shaterian ◽  
Sayyed Mostafa Habibi-Khorasani ◽  
Elaheh Mosaddegh
Keyword(s):  
Zinc Oxide ◽  
Condensation Reaction ◽  
One Pot ◽  
Efficient Catalyst ◽  
The One

Zinc Oxide as an Economical and Efficient Catalyst for the One-Pot Preparation of β-Acetamido Ketones via a Four-Component Condensation Reaction.

ChemInform ◽  
2007 ◽  
Vol 38 (25) ◽  
Author(s):  
Malek Taher Maghsoodlou ◽  
Asadollah Hassankhani ◽  
Hamid Reza Shaterian ◽  
Sayyed Mostafa Habibi-Khorasani ◽  
Elaheh Mosaddegh
Keyword(s):  
Zinc Oxide ◽  
Condensation Reaction ◽  
One Pot ◽  
Efficient Catalyst ◽  
The One

scholarly journals First synthesis of 2-(benzofuran-2-yl)-6,7-methylene dioxyquinoline-3-carboxylic acid derivatives

2011 ◽  
Vol 7 ◽  
pp. 210-217 ◽  
Author(s):  
Wentao Gao ◽  
Jia Liu ◽  
Yun Jiang ◽  
Yang Li
Keyword(s):  
Carboxylic Acid ◽  
Spectral Data ◽  
Condensation Reaction ◽  
Ultrasound Irradiation ◽  
One Pot ◽  
Elemental Analyses ◽  
The One

A facile and inexpensive synthesis of a series of novel methylenedioxy-bearing 2-(benzofuran-2-yl)-quinoline-3-carboxylic acid derivatives 3a–h via the one-pot reaction of ethyl 2-chloromethyl-6,7-methylenedioxyquinoline-3-carboxylate (5) with various substituted salicylaldehydes 6a–g as well as 2-hydroxy-1-naphthaldehyde (6h) is described. Substrate 5 was synthesized by the Friedländer condensation reaction of 2-amino-4,5-methylenedioxybenzaldehyde (4) with ethyl 4-chloro-3-oxobutanoate using KHSO4 as catalyst under ultrasound irradiation conditions. The targeted compounds 3a–h were obtained in good yields of 52–82% and their structures were established based on spectral data and elemental analyses.

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