6-nitrohexene-1 metathesis in the presence of rhenium heterogeneous catalysts

Authors
Zarzecki, S Zawadzki, J Skupinski, W
Citation
S. Zarzecki et al., 6-nitrohexene-1 metathesis in the presence of rhenium heterogeneous catalysts, REACT KIN C, 72(1), 2001, pp. 29-33
Citations number
5
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
REACTION KINETICS AND CATALYSIS LETTERS
ISSN journal
01331736 → ACNP
Volume
72
Issue
1
Year of publication
2001
Pages
29 - 33
Database
ISI
SICI code
0133-1736(200101)72:1<29:6MITPO>2.0.ZU;2-R
Abstract
6-nitrohexene-1 (6-NH-1) undergoes metathesis in the presence of 16 wt.% Re 2O7/Al2O3/R4M and 3 wt.% Re2O7/Al2O3-SiO2/R4M (where R = methyl, ethyl; M = Sn or Ph) catalysts. The system containing alumina as a support is more ac tive. Tetramethyltin (TMT) and tetraethyllead (TEL) used as co-catalysts, e xhibited similar activating effect which was greater than with tetraethylti n (TET). The best results were obtained when the Re:Sn(Pb) and 6-NH-1:Re ra tios were equal, respectively, to 1:1 and 10:1. The alumina-silica supporte d catalysts activity can be enhanced by doping the support with very small amounts of molybdenum ions.