<?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%">Bhosale, R. S.</style></author><author><style face="normal" font="default" size="100%">Hashmi, A. M.</style></author><author><style face="normal" font="default" size="100%">Zubaidha, P. K.</style></author><author><style face="normal" font="default" size="100%">Dongare, Mohan K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Efficient and improved method for the Biginelli reaction using solid superacid (sulphated SnO2)</style></title><secondary-title><style face="normal" font="default" size="100%">Heterocyclic Communications</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biginelli</style></keyword><keyword><style  face="normal" font="default" size="100%">DHPM</style></keyword><keyword><style  face="normal" font="default" size="100%">sulphated SnO2</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year><pub-dates><date><style  face="normal" font="default" size="100%">OCT</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5</style></number><publisher><style face="normal" font="default" size="100%">FREUND PUBLISHING HOUSE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">PO BOX 35010, TEL AVIV 61350, ISRAEL</style></pub-location><volume><style face="normal" font="default" size="100%">11</style></volume><pages><style face="normal" font="default" size="100%">399-402</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;One-pot synthesis of 3,4-dihydropyrimidin-2(1H)-one (DHPM) has been effected efficiently by coupling of the three components, aldehyde, ethyl acetoacetate and urea/thiourea in the presence of solid Superacid (sulphated SnO2). The method presented herein is attractive with respect to yield, reaction time, workup procedure and reusable catalyst.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">5</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%">0.828</style></custom4></record></records></xml>