<?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%">Kumar, Anil</style></author><author><style face="normal" font="default" size="100%">Pawar, Sanjay S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">High viscosity of ionic liquids causes rate retardation of Diels-Alder reactions</style></title><secondary-title><style face="normal" font="default" size="100%">Science China-Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Diels-Alder reactions</style></keyword><keyword><style  face="normal" font="default" size="100%">ionic liquids</style></keyword><keyword><style  face="normal" font="default" size="100%">kinetics</style></keyword><keyword><style  face="normal" font="default" size="100%">viscosity</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">AUG</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">8, SI</style></number><publisher><style face="normal" font="default" size="100%">SCIENCE PRESS</style></publisher><pub-location><style face="normal" font="default" size="100%">16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA</style></pub-location><volume><style face="normal" font="default" size="100%">55</style></volume><pages><style face="normal" font="default" size="100%">1633-1637</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Second order rate constants, k (2) have been determined for three bi-molecular Diels-Alder reactions to demonstrate that the high viscosity of ionic liquids can be a detrimental property in carrying out Diels-Alder reactions, if ionic liquids are employed as solvent media. It is possible to enhance the reaction rates of the reaction if a co-solvent is mixed in pure ionic liquid used as a solvent.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">8</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">1.327
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