K. S. Ravikumar, F. Barbier, J. Bégué
Jun 25, 1998
Citations
0
Influential Citations
57
Citations
Journal
Tetrahedron
Abstract
Abstract Manganese(III) acetate dihydrate is used as a catalyst for the epoxidation of various olefins with molecular oxygen/pivalaldehyde as an oxidant in perfluoro-2-butyltetrahydrofuran. Various types of olefins, including substituted styrenes, stilbenes and cyclic and acyclic alkenes were epoxidized in excellent yields at 25°C. The reaction is stereodependent. Regioselectivity is observed on epoxidation of limonene. Mono- and disubstituted olefins show interesting dichotomy in their reactivity in fluorous solvents such as perfluoro-2-butyltetrahydrofuran and 1,1,1,3,3,3-hexafluoro-2-propanol.