Selective Liquid Phase Ammoxidation of Aromatic Aldehydes to Aromatic Nitriles with VPO Titania Heterogeneous Catalysts in Air

Document Type: Research Note

Authors

Institute fur Angewandte Chemie Berlin-adlershof e.V, Berlin, GERMANY

Abstract

 Preparation of 2-Chlorobenzonitrile, and benzonitrile are reported here from the corresponding 2-Chlorobenzaldehyde and benzaldehyde by the reaction of ammonium hydroxide/VPO titania, VPO bulk (ammonium metavanadate) CuCr catalyst/air system in methanol. All these catalysts showed better conversions with reasonable selectivity to aromatic. The results prove that BET surface area results show VPO is present on the catalysts surface which has high surface area, attributed to increase in activity of the catalysts.

Keywords

Main Subjects


[1] Martin, A., Narayana, K. V., Lucke, B., Jurgen Sans, Green Chemistry, 4, 481 (2002).

[2] Tennant, G., “Comprehensive Organic Chemistry”, Sutherland Pergamon Press Oxford, 2, 385 (1979).

[3] Ullmanns Encyclopedia of Industrial Chemistry, 5th Completely Revised Edition, VCH, Weinheim, 17A, 371 (1991).

[4] Talukdar, S., Hsu, J.L., Chous, T.C., Fang, J.M., Tetrahedron Letter, 42, 1103 (2001).

[5] Das, B., Ramesh, C., P. Madhusudhan Synlett, 1599 (2000).

[6] Martin, A., Narayana, K.V., Lucke, B., Catalysis Tody, 78, 311 (2003).

[7] Martin, A., Narayana, K.V., Lucke, B., Jurgen Sans, Green Chemistry, 4, 481 (2002).

[8]  Martin, A.,Lucke, B.,Catalysis Today, 57,61(2000).

[9] Martin, A., Lucke, B., “Ammoxidation of Aromatic Side-Chains in: Fine Chemicals Through Hetero-geneous Catalysis”, Sheldon, R. and Van Bekkum, H., (Eds.), 527 (2001).

[10] L. K. Y. Ye  Rihko - Struckmann,  Chalakov,  L., Suchorski, Y., Weiss, H., Sundmacher, K., Bulk and Surface Properties of a VPO Catalyst Used in an Electorchemical Membrance Reactor: Conductivity, HRD, TPO and XPS Study, Catalysis Letter, 109, 9 (2006).

[11] Esping, O., Effect of Limestone Filler BET (H2O) Area on the Fresh and Hardened Properties of  Self Compacting Concrete and Concrete Research, 38, 938 (2008).