Rate Accelerations in AgNO3 Mediated Transesterification of β –Keto esters
Journal Title: Chemical Methodologies - Year 2018, Vol 2, Issue 0
Abstract
In the present study, AgNO3 is employed as an effective catalyst for transesterification of β-keto esters with various alcohols under conventional and non-conventional conditions. The alcohols are easily converted into corresponding acetates in very good yields and less reaction times. However, a decrease in reaction times as well as moderate yields were observed when performed under non-conventional conditions such as Sonication and Microwave irradiation. Contrary to many other silver salts catalysts, AgNO3 has shown remarkable levels of activity and stability towards transesterification reaction. The tendency in reaction rates was found to be MWAS (3-6 min) <<< Sonication (30-45 min) <<< Conventional (8-12 hrs).
Authors and Affiliations
Thummala Raja Mani, Yelike Hemanth Sriram, Kuthati Bhaskar, Addula Kiran Kumar, Karunakar Rao kudle
Evaluating Adsorption of Proline Amino Acid on the Surface of Fullerene (C60) and Carbon Nanocone by Density Functional Theory
Determination of proline is of great importance and investigating the interaction of this amino acid with nanostructures play a key role in the construction of novel appropriate sensors for proline measurement. In this r...
A Rapid and Highly Effectual Protocol for the Synthesis of Bis-coumarins using Triethylaminium-N-sulfonic Acid Tetrachloroaluminate under Solvent-Free Conditions
In this work, a rapid and highly effectual protocol for the synthesis of bis-coumarins has been developed. The one-pot quasi three-component reaction of aromatic aldehydes (1 eq.) with 4-hydroxycoumarin (2 eq.) in the pr...
Studies on Mechanical and Thermal Properties of PP with Natural Carbon Powder
The work has to develop polypropylene (PP) mixed for the purpose of compatible into the Prosopis juliflora bark powder (PB), Wheat husk carbon powder (WC) and Banyan carbon powder (BBC) using renewable bio resources. PB,...
Effect of Trimethoprim Inclusion Complexation with Cyclodextrins on its Antimicrobial Activity
The aim of present study is to highlight the effects of β-cyclodextrin (BCD) and hydroxypropyl-β-cyclodextrin (HBCD) and also the effect of their concentrations and methods of inclusion complexation on solubility and ant...
Efficient Synthesis of β-Lactam-Containing α-Aminophosphonates Using Fumaric Acid as Mild Catalyst
A short and efficient protocol for the synthesis of novel α-aminophosphonate esters containing β-lactam moiety is described. Inexpensive and mild catalyst such as fumaric acid was used for the synthesis of α-aminophospho...