Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Gerald D. Engel"'
Publikováno v:
Comptes Rendus Chimie. 6:1087-1096
Chiral dendrimer catalysts, which possess a high level of structural regularity, molecular monodispersity and well-defined catalytic sites, have been generated either by attachment of achiral complexes to chiral dendrimer structures or by immobilisat
Autor:
Lutz H. Gade, Gerald D. Engel
Publikováno v:
Chemistry - A European Journal. 8:4319-4329
A series of chiral phosphine-functionalized poly(propyleneimine) (PPI) dendrimers was synthesized by the reaction of carboxyl-linked C 2 -chiral pyrphos ligand (pyrphos = 3,4-bis(diphenylphosphino)pyrrolidine) with zeroth-fourth generation PPI using
Publikováno v:
Chemical communications (Cambridge, England). (11)
A remarkable and unprecedented increase in catalyst selectivity in dendrimer catalysis is observed for the Pyrphos-Pd catalysed allylic amination of 1,3-diphenyl-1-acetoxypropene as a function of the dendrimer generation (with up to 64 metal sites).
Autor:
Gerald D, Engel, Lutz H, Gade
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 8(18)
A series of chiral phosphine-functionalized poly(propyleneimine) (PPI) dendrimers was synthesized by the reaction of carboxyl-linked C(2)-chiral pyrphos ligand (pyrphos=3,4-bis(diphenylphosphino)pyrrolidine) with zeroth-fourth generation PPI using et