ASYMMETRIC EPOXIDATION OF UNFUNCTIONALIZED ALKENES WITH PERIODATES CATALYZED BY CHIRAL (SALEN)MN(III) COMPLEXES

Authors
PIETIKAINEN P
Citation
P. Pietikainen, ASYMMETRIC EPOXIDATION OF UNFUNCTIONALIZED ALKENES WITH PERIODATES CATALYZED BY CHIRAL (SALEN)MN(III) COMPLEXES, Tetrahedron letters, 36(2), 1995, pp. 319-322
Citations number
20
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
36
Issue
2
Year of publication
1995
Pages
319 - 322
Database
ISI
SICI code
0040-4039(1995)36:2<319:AEOUAW>2.0.ZU;2-8
Abstract
Sodium and tetra-n-butylammonium periodates were used as oxidants in t he asymmetric epoxidation of unfunctionalized alkenes with chiral (sal en)Mn(III) complexes 1-2 together with imidazole as donor ligand. Reac tion system used consisted of the alkene, oxidant, donor ligand, and s alen in ratios of 1: 2.5: 0.75: 0.06. Both cis- and trans-alkenes were epoxidized with reasonable yield and enantioselectivity (up to 85% ee for 2,2-dimethylchromene).