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Linked aza ligands

In 2000, Reiser [96] reported the first immobilization of aza-bis(oxazolines). Aza-bis(oxazoline) 74b has been easily grafted to a soluble polymeric support ((methoxy(polyethyleneglycol) MeOPEG 5000) in order to form soluble catalysts which could be recovered by precipitation. This polymer (100 Scheme 47) was obtained successfully (55% yield) if a benzylidene spacer linked to the PEG was employed. Complexed with Cu(II), this ligand was able to promote asymmetric cyclopropanation of styrene (Scheme 36 Ri = Ph, R2 = H, R3 = Me, R4 = H) and 1,1-diphenylethene (scheme 36 ... [Pg.81]

See other pages where Linked aza ligands is mentioned: [Pg.54]    [Pg.87]    [Pg.1212]    [Pg.109]    [Pg.250]    [Pg.657]    [Pg.907]    [Pg.42]    [Pg.89]    [Pg.115]    [Pg.434]    [Pg.103]    [Pg.38]    [Pg.133]    [Pg.267]    [Pg.90]    [Pg.106]    [Pg.76]    [Pg.1553]    [Pg.267]    [Pg.39]    [Pg.1203]    [Pg.359]    [Pg.216]   
See also in sourсe #XX -- [ Pg.54 , Pg.55 , Pg.56 , Pg.57 , Pg.58 , Pg.59 , Pg.60 , Pg.61 ]



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