<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Das, Tamal Kanti</style></author><author><style face="normal" font="default" size="100%">Biju, Akkattu T.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">N-heterocyclic carbene (NHC)-catalyzed transformations for the synthesis of heterocycles</style></title><secondary-title><style face="normal" font="default" size="100%">Progress in Heterocyclic Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">aldehyde umpolung</style></keyword><keyword><style  face="normal" font="default" size="100%">Aldimine umpolung</style></keyword><keyword><style  face="normal" font="default" size="100%">benzoin reaction</style></keyword><keyword><style  face="normal" font="default" size="100%">Breslow intermediates</style></keyword><keyword><style  face="normal" font="default" size="100%">Enantioselective synthesis</style></keyword><keyword><style  face="normal" font="default" size="100%">Heterocyclic synthesis</style></keyword><keyword><style  face="normal" font="default" size="100%">N-Heterocyclic carbene</style></keyword><keyword><style  face="normal" font="default" size="100%">Stetter reaction</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JAN</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">31</style></volume><pages><style face="normal" font="default" size="100%">1-82</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;N-heterocyclic carbene (NHC)-based organocatalysis has been widely used for unconventional access to various target molecules. The use of chiral NHCs in the process results in the enantioselective synthesis of various heterocycles. The underlying principle of many of the NHC-catalyzed reactions is the remarkable ability of NHCs to reverse the normal mode of reactivity of aldehydes (umpolung). NHCs can catalyze transformations proceeding via the umpolung or nonumpolung mode for the synthesis of various functionalized molecules. The recent advances in the application of NHCs for the synthesis of various heterocyclic compounds are highlighted in this chapter.&lt;/p&gt;
</style></abstract><work-type><style face="normal" font="default" size="100%">Book Chapter</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;
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