<?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%">Pore, D. M.</style></author><author><style face="normal" font="default" size="100%">Soudagar, M. S.</style></author><author><style face="normal" font="default" size="100%">Desai, Uday V.</style></author><author><style face="normal" font="default" size="100%">Thopate, T. S.</style></author><author><style face="normal" font="default" size="100%">Wadagaonkar, P. P.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Potassium phosphate or silica sulfuric acid catalyzed conjugate addition of thiols to alpha,beta-unsaturated ketones at room temperature under solvent-free conditions</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alpha</style></keyword><keyword><style  face="normal" font="default" size="100%">beta-unsaturated ketones</style></keyword><keyword><style  face="normal" font="default" size="100%">chalcones</style></keyword><keyword><style  face="normal" font="default" size="100%">conjugated enones</style></keyword><keyword><style  face="normal" font="default" size="100%">Michael addition</style></keyword><keyword><style  face="normal" font="default" size="100%">Potassium phosphate</style></keyword><keyword><style  face="normal" font="default" size="100%">silica sulfuric acid</style></keyword><keyword><style  face="normal" font="default" size="100%">thiols</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year><pub-dates><date><style  face="normal" font="default" size="100%">DEC</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">52</style></number><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">47</style></volume><pages><style face="normal" font="default" size="100%">9325-9328</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Potassium phosphate and silica sulfuric acid have been found to be useful and highly efficient catalysts for conjugate addition of thiols to alpha,beta-unsaturated ketones under solvent-free conditions, at room temperature. Silica sulfuric acid (SSA) was found to be suitable for electron-deficient enones while potassium phosphate was found to effect thia-Michael addition with both, electron-deficient as well as electron-rich conjugated ketones. (c) 2006 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">52</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">2.347</style></custom4></record></records></xml>