IEC 191 |
| Ranjit Kumar1, Javier Garces2, Young-Chan Son1, and Steven L. Suib3. (1) Department of Chemistry, University of Connecticut, 55, N. Eagleville Road, Storrs, CT 06269, (2) Institute of Materials Science, University of Connecticut, Storrs, CT 06269, (3) Department of Chemistry, Department of Chemical Engineering, Institute of Materials Science, University of Connecticut, 55 North Eagleville Rd., Storrs, CT 06269-3060 |
| Cryptomelane type manganese oxide Octahedral Molecular Sieves (K-OMS-2) have been traditionally used for oxidation of alcohols, alkenes, and alkanes. The H+ form of K-OMS-2 was synthesized by successive ion-exchange with concentrated HNO3. The H+ form of K-OMS-2 has been found to be a very efficient catalyst for the selective synthesis of o-aminodiphenylamine by condensation of aniline with phenylhydroxylamine. The selectivity of the ortho product is over 95% with respect to p-aminodiphenylamine. Most of the zeolitic type acidic catalysts give predominantly the para product, but H-K-OMS-2 is unique in this respect that it gives the ortho product with high selectivity. The reactions were carried out at 110°C in a semi-batch reactor in an inert atmosphere. |
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Nanotechnology and the Environment
8:30 AM-11:55 AM, Wednesday, March 26, 2003 Convention Center -- Room 392, Oral
Division of Industrial and Engineering Chemistry |