<?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%">Katkar, Santosh S.</style></author><author><style face="normal" font="default" size="100%">Mohite, Pravinkumar H.</style></author><author><style face="normal" font="default" size="100%">Gadekar, Lakshman S.</style></author><author><style face="normal" font="default" size="100%">Arbad, Balasaheb R.</style></author><author><style face="normal" font="default" size="100%">Lande, Machhindra K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">ZnO-beta zeolite: as an effective and reusable heterogeneous catalyst for the one-pot synthesis of polyhydroquinolines</style></title><secondary-title><style face="normal" font="default" size="100%">Green Chemistry Letters and Reviews</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Hantzsch condensation</style></keyword><keyword><style  face="normal" font="default" size="100%">heterogeneous catalyst</style></keyword><keyword><style  face="normal" font="default" size="100%">multicomponent</style></keyword><keyword><style  face="normal" font="default" size="100%">ZnO-beta zeolite</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</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%">4</style></number><publisher><style face="normal" font="default" size="100%">TAYLOR &amp; FRANCIS LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">3</style></volume><pages><style face="normal" font="default" size="100%">287-292</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;ZnO-beta zeolite, an inexpensive and mild catalyst, has been used for the synthesis of polyhydroquinolines in excellent yields from the one-pot four-component condensation of aldehydes, dimedone, ethyl acetoacetate, and ammonium acetate in ethanol at room temperature. The remarkable advantages offered by this method are a green catalyst, mild reaction conditions, simple work-up procedures, much faster reactions, and excellent yield of products. Furthermore, the catalyst could be reused several times keeping its initial activity in recycled reactions.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">5.472</style></custom4></record><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%">Katkar, Santosh S.</style></author><author><style face="normal" font="default" size="100%">Mohite, Pravinkumar H.</style></author><author><style face="normal" font="default" size="100%">Gadekar, Lakshman S.</style></author><author><style face="normal" font="default" size="100%">Arbad, Balasaheb R.</style></author><author><style face="normal" font="default" size="100%">Lande, Machhindra K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">ZnO-beta zeolite mediated simple and efficient method for the one-pot synthesis of quinoxaline derivatives at room temperature</style></title><secondary-title><style face="normal" font="default" size="100%">Central European Journal of Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">cyclocondensation</style></keyword><keyword><style  face="normal" font="default" size="100%">Quinoxaline</style></keyword><keyword><style  face="normal" font="default" size="100%">Room temperature</style></keyword><keyword><style  face="normal" font="default" size="100%">ZnO-beta zeolite</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">APR</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2</style></number><publisher><style face="normal" font="default" size="100%">VERSITA</style></publisher><pub-location><style face="normal" font="default" size="100%">SOLIPSKA 14A-1, 02-482 WARSAW, POLAND</style></pub-location><volume><style face="normal" font="default" size="100%">8</style></volume><pages><style face="normal" font="default" size="100%">320-325</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;A rapid and an efficient one-pot method for the synthesis of quinoxalines catalysed by ZnO-beta zeolite at room temperature is described. This environmentally benign method provides several advantages over methods that are currently employed such as a simple work-up, mild reaction conditions, good to excellent yields, and a process to recover and reuse the catalyst for several cycles with consistent activity.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">0.991</style></custom4></record></records></xml>