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Cs Salt of Undecatungstophospho(aqua) Cuprate(II): Microwave Synthesis, Characterization, Catalytic and Kinetic Study for Epoxidation of cis‐Cyclooctene with TBHP
Author(s) -
Patel Anjali U.,
Sadasivan Rajesh
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201802258
Subject(s) - cyclooctene , catalysis , chemistry , selectivity , epoxide , lanthanum , microwave , bifunctional , copper , inorganic chemistry , solvent , nuclear chemistry , organic chemistry , physics , quantum mechanics
The present paper describes a facile microwave route for the synthesis of Cesium salt of mono‐copper substituted phosphotungstate, Cs 5 [PW 11 Cu(H 2 O)O 39 ].4H 2 O, from H 3 PW 12 O 40 , CuCl 2 and CsCl, its characterization and catalytic activity towards solvent‐free, selective epoxidation of cis‐cyclooctene using TBHP as the oxidant. In order to confirm the superiority of the microwave technique, the said complex was also synthesized by reflux method and the same studies were carried out. The present complex is found to be sustainable as well as recyclable without any change in % conversion as well as % selectivity towards epoxide. A detailed kinetic study showed an overall second order dependence of the reaction with respect to cyclooctene and TBHP.