Cyclopropanation reactions catalysed by copper(II)-exchanged clays and zeolites. Influence of the catalyst on the selectivity
- 1 January 1996
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Chemical Communications
- No. 11,p. 1319-1320
- https://doi.org/10.1039/cc9960001319
Abstract
The reaction of ethyl diazoacetate with styrene is catalysed by CuII-exchanged clays and zeolites; the trans/cis selectivity strongly depends on the nature of the catalyst and when using CuII-K10 montmorillonite the normal selectivity in solution is reversed and the cis-cyclopropane is the major product. The tendency of this catalyst to increase the amount of the product less favoured in solution is confirmed in other reactions.Keywords
This publication has 12 references indexed in Scilit:
- Cyclopropanation of activated olefins catalysed by Ru-phosphine complexesTetrahedron Letters, 1995
- The use of heterogeneous catalysis in Diels-Alder reactions of N-acetyl-α,β-dehydroalaninatesTetrahedron, 1995
- Comparison of the catalytic properties of protonic zeolites and exchanged clays for Diels-Alder synthesisApplied Catalysis A: General, 1993
- Rearrangements of Vinylcyclopropanes and Related SystemsPublished by Elsevier ,1991
- Optically active cyclopropanesChemical Reviews, 1989
- Use of cyclopropanes and their derivatives in organic synthesisChemical Reviews, 1989
- Sterically crowded cyclopropanation catalysts. Syn-selectivity using rhodium(III)porphyrinsTetrahedron, 1982
- Synthesen von PyrethroidsäurenAngewandte Chemie, 1981
- Cyclopropanation using rhodium (III) porphyrins : LargeTetrahedron Letters, 1980
- A Photostable PyrethroidNature, 1973