New polynuclear catalysts for atom-transfer radical addition reactions
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The water-sol. ruthenium(II) complexes [Cp'RuX(PTA)2]Y and [CpRuCl(PPh3)(mPTA)]OTf (Cp' = Cp, Cp*, X = Cl and Y = nil; or X = MeCN and Y = PF6; PTA = 1,3,5-triaza-7-phosphaadamantane; mPTA = 1-methyl-1,3,5-triaza-7-phosphaadamantane) were used as catalyst ...
In the presence of a catalytic amt. of (Schiff base)Al(III)Cl complex (Schiff base of (R,R)-1,2-cyclohexanediamine with 3,5-di-tert-butyl-2-hydroxybenzaldehyde), reaction between alpha -isocyanoacetamides and aldehydes afforded the corresponding 5-aminooxa ...
Reaction of RuCl3 with 1-[2-(1,4-cyclohexadiene-1-yl)alkyl]-3-methylimidazolium chloride (alkyl = Et, butyl) and 1-[2-(1,4-cyclohexadiene-1-yl)ethyl]-2,3-dimethylimidazolium chloride affords a series of dimeric ruthenium complexes of the type [RuCl2(η6-are ...
The tetradentate chelate ligand tris[(1-vinylimidazol-2-yl)methyl]amine (10) was synthesized in five steps from commercially available starting materials. Upon reaction with MCl2 (M = Zn, Cu, Ni, Co) in the presence of NH4PF6, the complexes [M(10)Cl]PF6 (M ...
Neutral metallamacrocycles with four or ten metal centers were obtained by reaction of [(R3P)PdCl2]2 with 2,3-dihydroxypyridine and derivatives or 2-hydroxynicotinic acid in the presence of base. In all these assemblies, the two O-donor atoms of the ligand ...
The bimetallic ruthenium complex [(1,3,5-C6H3i-Pr3)Ru(m-Cl)3RuCl(C2H4)(PCy3)] has been synthesized by reaction of [(1,3,5-C6H3i-Pr3)RuCl2)]2 with one equivalent of PCy3 in the presence of ethylene. It can be used as a catalyst precursor for the controlled ...
A ruthenium meso-tetra[4-(vinylbenzoxy)benzyl]porphyrin catalyst with four meso-polymerizable side chains was synthesized in three steps from commercially available starting materials. The polymerizable side chains allowed the incorporation of this complex ...
