Hydroamination of 6-aminohex-1-yne over zinc based homogeneous and zeolitecatalysts

Authors
Penzien, J Muller, TE Lercher, JA
Citation
J. Penzien et al., Hydroamination of 6-aminohex-1-yne over zinc based homogeneous and zeolitecatalysts, MICROP M M, 48(1-3), 2001, pp. 285-291
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
MICROPOROUS AND MESOPOROUS MATERIALS
ISSN journal
13871811 → ACNP
Volume
48
Issue
1-3
Year of publication
2001
Pages
285 - 291
Database
ISI
SICI code
1387-1811(20011101)48:1-3<285:HO6OZB>2.0.ZU;2-8
Abstract
Ion-exchanged zeolites are efficient heterogeneous catalysts for the intram olecular addition of an amine H-NR2 to a CC triple bond. This was shown for the cyclisation of 6-aminohex-1-yne to 2-methyl-1,2-dehydropiperidine. For this reaction zinc(II)-exchanged zeolite BEA was one of the most active ca talysts. The heterogeneous catalyst was more active than the corresponding homogeneous catalyst Zn(CF3SO3)(2), which is concluded to be related to co- catalysis between Lewis and Bronsted acid sites present in the zeolite. (C) 2001 Elsevier Science B.V. All rights reserved.