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1543551 
Journal Article 
Epoxidation of olefins catalyzed by manganese(II) complexes of Schiff base ligand having N2O coordination 
Guha, A; Das, D 
2011 
1 
Indian Journal of Chemistry. Section A
ISSN: 0376-4710
EISSN: 0975-0975 
50 
11 
1574-1578 
WOS:000297403500004 
Three mononuclear manganese(II) complexes having two N2O
coordination spheres have been examined as catalysts for epoxidation of (E)-stilbene and styrene
using Phi and NaOCl as terminal oxidants in four different solvents. The catalytic efficiency of
the complexes are observed to be influenced not only by their own structural features but also by
the nature of terminal oxidant, substrate as well as the solvents. Epoxidation proceeds with the
formation of two different intermediates, O=Mn(IV)(L)(X) and Cl-O-Mn(II)(L)(X) [X=NO3/SCN/N(CN)
(2)], in presence of PhIO and NaOCl respectively. Amongst the solvents, acetonitrile is found to
be the most suitable. 
Epoxidation; Solvent effects; Terminal oxidants; Olefins; Manganese; Catalysts; Schiff bases