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High Turnover Numbers for the Catalytic Selective Epoxidation of Alkenes with 1 atm of Molecular Oxygen
Author(s) -
Nishiyama Yoshiyuki,
Nakagawa Yoshinao,
Mizuno Noritaka
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20011001)40:19<3639::aid-anie3639>3.0.co;2-0
Subject(s) - catalysis , oxygen , molecular oxygen , chemistry , medicinal chemistry , biochemistry , organic chemistry
The diiron‐substituted silicotungstate γ ‐SiW 10 {Fe 3+ (OH 2 )} 2 O 38 6− (schematically shown) is an effective catalyst for the oxygenation of alkenes in homogeneous reaction media with 1 atm of molecular oxygen. For example, a selectivity for cyclooctene oxide of 98 % and a turnover number of 10 000 were achieved in the epoxidation of cyclooctene. The catalyst is stable under the reaction conditions, and its ability to use molecular oxygen raises the prospect of using it in industrial epoxidation processes.