scholarly journals Bismuth (III) Salts Promoted and Ionic Liquid Assisted an Efficient and Environmentally Benign One-Pot Synthesis of 1,5-Benzodiazepine Derivatives

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Atul Chaskar ◽  
Latika Patil ◽  
Kiran Phatangare ◽  
Vikas Padalkar ◽  
Santosh Takale
Keyword(s):  
Ionic Liquid ◽  
Environmentally Benign ◽  
One Pot ◽  
Mild Conditions ◽  
Condensation Reactions ◽  
One Pot Synthesis ◽  
Benzodiazepine Derivatives ◽  
Efficient Environment

1,5-Benzodiazepine derivatives were synthesized by the condensation reactions of o-phenylenediamine and ketones catalyzed by bismuth (III) salts under mild conditions. This method is easy, efficient, environment and eco-friendly, free of toxic catalysts, and gives good to excellent yields of 1, 5-benzodiazepines.

scholarly journals An Efficient One-Pot Synthesis of 1, 5-Benzodiazepine Derivatives Catalyzed by TBAB under Mild Conditions

2012 ◽  
Vol 9 (1) ◽  
pp. 407-414 ◽  
Author(s):  
Mohammad A. Baseer ◽  
Asgar Jafar Khan
Keyword(s):  
Reaction Time ◽  
Solvent Free ◽  
Ammonium Bromide ◽  
One Pot ◽  
Short Reaction Time ◽  
Mild Conditions ◽  
Excellent Yield ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Benzodiazepine Derivatives

2,3-Dihydro-1H-1,5-benzodiazepines were synthesized by reaction ofo-phenylenediamine with ketones (acyclic / cyclic) under solvent free conditions in the presence of tetra butyl ammonium bromide (TBAB) in short reaction time with excellent yield.

An ionic liquid catalyzed reusable protocol for one-pot synthesis of 2,3-dihydroquinazolin-4(1H)-one under mild conditions

2015 ◽  
Vol 39 (12) ◽  
pp. 9693-9699 ◽  
Author(s):  
S. Nagarajan ◽  
Tanveer Mahamadali Shaikh ◽  
Elango Kandasamy
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Functional Group ◽  
One Pot ◽  
Mild Conditions ◽  
One Pot Synthesis ◽  
Synthetic Utility

This article describes an efficient protocol for the syntheses of 2,3-dihydroquinazolinones. The synthetic utility of this methodology has been demonstrated with 30 different substrates. The reaction showed good functional group tolerance and high levels of catalytic activity.

An ionic liquid catalyzed probase method for one-pot synthesis of α,β-unsaturated esters from esters and aldehydes under mild conditions

2017 ◽  
Vol 19 (20) ◽  
pp. 4838-4848 ◽  
Author(s):  
Gang Wang ◽  
Yiming Xu ◽  
Suojiang Zhang ◽  
Zengxi Li ◽  
Chunshan Li
Keyword(s):  
Ionic Liquid ◽  
Unsaturated Ester ◽  
Ester Synthesis ◽  
One Pot ◽  
Unsaturated Esters ◽  
Mild Conditions ◽  
One Pot Synthesis

An ionic liquid catalyzed probase method for unsaturated ester synthesis under mild conditions was reported.

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