A fluorous phase approach to rhodium-catalyzed carbenoid reactions with diazoacetates

Authors
Endres, A Maas, G
Citation
A. Endres et G. Maas, A fluorous phase approach to rhodium-catalyzed carbenoid reactions with diazoacetates, TETRAHEDR L, 40(35), 1999, pp. 6365-6368
Citations number
25
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
40
Issue
35
Year of publication
1999
Pages
6365 - 6368
Database
ISI
SICI code
0040-4039(19990827)40:35<6365:AFPATR>2.0.ZU;2-V
Abstract
The cyclopropanation of alkenes with methyl diazoacetate in dichloromethane was catalyzed by rhodium(II) carboxylates containing a perfluoralkyl chain (Rh2L4, L = OOCC7F15 and OOC-C6H4-4-C6F13) The catalysts could be extracte d into perfluoro(methylcyclohexane) and were reused several times without s ignificant loss of activity. The same catalysts were used to achieve carben e transfer to toluene in the solvent system toluene-perfluoro(methylcyclohe xane) at 60 degrees C. (C) 1999 Elsevier Science Ltd. All rights reserved.