【摘 要】
：
Various type of cesium partially substituted phosphotungstate,Cs_xH_(3-x)PW_(12)O_(40)(x = 1.0,2.0 and 2.5),were synthesized and their catalytic activities were
【机 构】
：
Faculty of Chemistry,Razi University,Kermanshah 67149,Iran,Kermanshah Oil Refining Company,Kermansha
【出 处】
：
Chinese Chemical Letters
论文部分内容阅读
Various type of cesium partially substituted phosphotungstate,Cs_xH_(3-x)PW_(12)O_(40)(x = 1.0,2.0 and 2.5),were synthesized and their catalytic activities were investigated in the synthesis of quinoline.It was shown that catalytic activities of these catalysts correlated to surface acidity and total number of acidic sites.Finally,a series of quinoline derivatives were synthesized with Cs_(2.5)H_(0.5)PW_(12)O_(40) via the Friedlander reaction in high to excellent yields and the plausible mechanism was proposed.Simple experiment,catalyst reusability,short reaction time and preclusion of toxic solvent are the advantages of this method.
Various types of cesium partially substituted phosphotungstate, Cs_xH_ (3-x) PW_ (12) O_ (40) (x = 1.0, 2.0 and 2.5), were synthesized and their catalytic activities were investigated in the synthesis of quinoline.It was shown that catalytic activities of these catalysts correlated to surface acidity and total number of acidic sites .Finally, a series of quinoline derivatives were synthesized with Cs_ (2.5) H_ (0.5) PW_ (12) O_ (40) via the Friedlander reaction in high to excellent yields and the plausible mechanism was proposed. Simple experiment, catalyst reusability, short reaction time and preclusion of toxic solvent are the advantages of this method.
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