01402nas a2200241   4500008004100000022001400041245012500055210006900180260007900249300001200328490000700340520046400347653001800811653002200829653002700851653002100878100002400899700002800923700002600951700002500977700002601002856013201028       2010                        eng d  a1001-841700aZnO-beta zeolite: as an effective and eco-friendly heterogeneous catalyst for the synthesis of benzothiazole derivatives0 aZnObeta zeolite as an effective and ecofriendly heterogeneous ca  a360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USAbELSEVIER SCIENCE INCcAPR  a421-4250 v213 a<p>A cheap and recyclable ZnO-beta zeolite was used as catalyst for the synthesis of benzothiazole derivatives. This method provides several advantages such as environmental friendliness, short reaction times, high yields, simple work-up procedure and catalyst was successfully reused for four cycles without significant loss of activity. (C) 2009 Machhindra K. Lande. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.</p>10aBenzothiazole10acyclocondensation10aheterogeneous catalyst10aZnO-beta zeolite1 aKatkar, Santosh, S.1 aMohite, Pravinkumar, H.1 aGadekar, Lakshman, S.1 aVidhate, Kaluram, N.1 aLande, Machhindra, K.  uhttps://library.ncl.res.in/content/zno-beta-zeolite-effective-and-eco-friendly-heterogeneous-catalyst-synthesis-benzothiazole-001511nas a2200241   4500008004100000022001400041245012300055210006900178260009200247300001200339490000600351520056800357653002600925653002700951653001900978653002100997100002401018700002801042700002601070700002501096700002601121856012201147       2010                        eng d  a1751-825300aZnO-beta zeolite: as an effective and reusable heterogeneous catalyst for the one-pot synthesis of polyhydroquinolines0 aZnObeta zeolite as an effective and reusable heterogeneous catal  a4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLANDbTAYLOR & FRANCIS LTDcDEC  a287-2920 v33 a<p>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.</p>10aHantzsch condensation10aheterogeneous catalyst10amulticomponent10aZnO-beta zeolite1 aKatkar, Santosh, S.1 aMohite, Pravinkumar, H.1 aGadekar, Lakshman, S.1 aArbad, Balasaheb, R.1 aLande, Machhindra, K.  uhttps://library.ncl.res.in/content/zno-beta-zeolite-effective-and-reusable-heterogeneous-catalyst-one-pot-synthesis-001329nas a2200241   4500008004100000022001400041245013100055210006900186260005600255300001200311490000600323520042400329653002200753653001600775653002100791653002100812100002400833700002800857700002600885700002500911700002600936856012500962       2010                        eng d  a1895-106600aZnO-beta zeolite mediated simple and efficient method for the one-pot synthesis of quinoxaline derivatives at room temperature0 aZnObeta zeolite mediated simple and efficient method for the one  aSOLIPSKA 14A-1, 02-482 WARSAW, POLANDbVERSITAcAPR  a320-3250 v83 a<p>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.</p>10acyclocondensation10aQuinoxaline10aRoom temperature10aZnO-beta zeolite1 aKatkar, Santosh, S.1 aMohite, Pravinkumar, H.1 aGadekar, Lakshman, S.1 aArbad, Balasaheb, R.1 aLande, Machhindra, K.  uhttps://library.ncl.res.in/content/zno-beta-zeolite-mediated-simple-and-efficient-method-one-pot-synthesis-quinoxaline-0