Air oxidation of olefins using titanium substituted heteropoly anions

Authors
Alekar, NA Gopinathan, C Gopinathan, S
Citation
Na. Alekar et al., Air oxidation of olefins using titanium substituted heteropoly anions, I J CHEM A, 38(10), 1999, pp. 1051-1053
Citations number
10
Categorie Soggetti
Chemistry
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
ISSN journal
03764710 → ACNP
Volume
38
Issue
10
Year of publication
1999
Pages
1051 - 1053
Database
ISI
SICI code
0376-4710(199910)38:10<1051:AOOOUT>2.0.ZU;2-H
Abstract
Air oxidation of styrene and cyclohexene has been studied in the presence o f isobutyraldehyde as reductant using heteropoly anion catalysts such as K- 5[PW11TiO40], K-7[PW10Ti2O40], K-2[Bu4N](5)[PW10Ti2O40], Na-2.25[(CH3)(2)(C 6H5)(C6H5CH2)N](4.75) [PW10Ti2O40] and K-7[PW10Ti2O40] supported on silica (10% by wt.). The major product of oxidation of styrene is styrene oxide wh ile that for cyclohexene is the corresponding oxide. The maximum molar conv ersion for styrene is 81% with 83% selectivity for the oxide; for cyclohexe ne, these values are 49 and 93% respectively.