Montmorillonite and vanadia—montmorillonite catalysts for aniline alkylation
✍ Scribed by Sankarasubbier Narayanan; Kiranmayi Deshpande; Boppana P. Prasad
- Publisher
- Elsevier Science
- Year
- 1994
- Weight
- 198 KB
- Volume
- 88
- Category
- Article
- ISSN
- 0304-5102
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Vanadia and silica-supported vanadia have been characterized by XRD, ESR and chemisorption of oxygen at low temperature (COLT) to assess the nature of the vanadia dispersion on the support. Aniline alkylation studies on the effect of temperature and contact time on the conversion and selectivity of
Substituted anilines react with phenylacetylene in the presence of montmorilionite KSF affording I.l-diarylethylenes 3 in good yields and excellent selectivities. In the presence of an excess of phenylacetylene, para-toluidine and para-anisidine give the corresponding 2,6-bis(l-phenylvinyl)anilines.