Issue 4, 2015
From the journal:

New Journal of Chemistry

Highly enantioselective Michael addition reactions with new trimeric chiral phase transfer catalysts†

Arockiam Jesin Beneto,a   Jayaraman Sivamani,a   Veeramanoharan Ashokkumar,a   Rajendiran Balasaravanan,a   Kumaraguru Duraimurugana  and  Ayyanar Siva*a  

* Corresponding authors

a Department of Inorganic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai-625 021, India
E-mail: drasiva@gmail.com, ptcsiva@yahoo.co.in

Abstract

New types of mesitylene based tri-site containing asymmetric quaternary ammonium salts 9a and 9b have been prepared and used as efficient chiral phase transfer catalysts for enantioselective Michael addition reactions between the chalcones and diethylmalonate under mild reaction conditions such as lower concentration of base, catalyst and ultrasonic conditions with very good chemical yields (up to 98%) and ee's (up to 99%).

Graphical abstract: Highly enantioselective Michael addition reactions with new trimeric chiral phase transfer catalysts

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Article information

DOI
https://doi.org/10.1039/C4NJ02395A
Article type
Paper
Submitted
24 Dec 2014
Accepted
08 Feb 2015
First published
09 Feb 2015

New J. Chem., 2015,39, 3098-3104

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Highly enantioselective Michael addition reactions with new trimeric chiral phase transfer catalysts

A. J. Beneto, J. Sivamani, V. Ashokkumar, R. Balasaravanan, K. Duraimurugan and A. Siva, New J. Chem., 2015, 39, 3098 DOI: 10.1039/C4NJ02395A

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