NaY zeolite as host for the selective heterogeneous oxidation of silanes and olefins with hydrogen peroxide catalyzed by methyltrioxorhenium

Authors
Adam, W Saha-Moller, CR Weichold, O
Citation
W. Adam et al., NaY zeolite as host for the selective heterogeneous oxidation of silanes and olefins with hydrogen peroxide catalyzed by methyltrioxorhenium, J ORG CHEM, 65(10), 2000, pp. 2897-2899
Citations number
24
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
JOURNAL OF ORGANIC CHEMISTRY
ISSN journal
00223263 → ACNP
Volume
65
Issue
10
Year of publication
2000
Pages
2897 - 2899
Database
ISI
SICI code
0022-3263(20000519)65:10<2897:NZAHFT>2.0.ZU;2-M
Abstract
The methyltrioxorhenium(MTO)-catalyzed oxidation of silanes to silanols and the epoxidation of various olefins by aqueous 85% H2O2 proceed in high yie lds and excellent product selectivities (no disiloxanes, diols) in the pres ence of the zeolite NaY. The oxidative species is located inside the 12-Ang strom supercages. This prevents the bimolecular condensation of the silanol to disiloxane by steric means and the Lewis-acid assisted hydrolysis of th e epoxide to the diol.