Palladium/tetraphosphine catalysed heck reaction with ortho-substituted aryl bromides

Citation
M. Feuerstein et al., Palladium/tetraphosphine catalysed heck reaction with ortho-substituted aryl bromides, SYNLETT, (12), 2001, pp. 1980-1982
Citations number
34
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNLETT
ISSN journal
09365214 → ACNP
Issue
12
Year of publication
2001
Pages
1980 - 1982
Database
ISI
SICI code
0936-5214(200112):12<1980:PCHRWO>2.0.ZU;2-6
Abstract
The tetraphosphine cis,cis,cis-1,2,3,4- tetrakis(diphenlylphosphinomethyl)c yclopentane associated to [PdCl(C3H5)](2) catalyses the Heck reaction of bu tyl acrylate with a wide range of sterically demanding aryl bromides, furni shing the addition product in high yields. Turnover numbers as high as 30-8 9000 have been obtained using ortho-substituted aryl bromides and 43-2600 w ith di-ortho-substituted aryl bromides in the presence of this catalyst.