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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.50A [2011] >
IJC-A Vol.50A(11) [November 2011] >
| Title: | Epoxidation of olefins catalyzed by manganese(II) complexes of Schiff base ligand having N2O coordination sphere |
| Authors: | Guha, Averi
Das, Debasis |
| Keywords: | Epoxidation
Solvent effects
Terminal oxidants
Olefins
Manganese
Catalysts
Schiff bases |
| Issue Date: | Nov-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Three
mononuclear manganese(II) complexes having two N2O coordination
spheres have been examined as catalysts for epoxidation of (E)-stilbene
and styrene using PhIO 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. |
| Page(s): | 1574-1578 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Source: | IJC-A Vol.50A(11) [November 2011]
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