Ru-salen catalyzed asymmetric epoxidation: Photoactivation of catalytic activity

Authors
Takeda, T Irie, R Shinoda, Y Katsuki, T
Citation
T. Takeda et al., Ru-salen catalyzed asymmetric epoxidation: Photoactivation of catalytic activity, SYNLETT, (7), 1999, pp. 1157-1159
Citations number
16
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNLETT
ISSN journal
09365214 → ACNP
Issue
7
Year of publication
1999
Pages
1157 - 1159
Database
ISI
SICI code
0936-5214(199907):7<1157:RCAEPO>2.0.ZU;2-Y
Abstract
(ON+)(Salen)ruthenium(II) complex 1 was found to be an efficient catalyst f or the epoxidation of conjugated olefins under sunlight coming through wind ows or incandescent light. The most suitable terminal oxidant was 2,6-dichl oropyridine N-oxide 2. All the examined conjugated olefins showed high enan tioselectivity greater than 80% ee, irrespective of their substitution patt ern.