Methanofullerenes such as the well-known [70]PCBM are commonly synthesized under harsh conditions to obtain the product as a mixture of site-isomers (namely [small alpha], [small beta] and minor [gamma]) due to the...
Titanium-multicarbene complexes, namely organotitanium species having a plurality of titanium-carbene complex substructures, were easily prepared by the reaction of aromatic nuclei possessing spatially separated thioacetal moieties with the titanocene(II) reagent Cp2Ti[P(OEt)3]2. Reaction of these multicarbene complexes with aromatic ketones gave various highly conjugated compounds in good yields.
demonstrated to function as C1 carbonylsynthon in the carbonylations of triarylbismuth and triarylindium nucleophiles under palladium-catalyzed conditions. All the three aryl groups from both bismuth and indium reagents participated in carbonylative couplings to afford the corresponding functionalized ketones in high yields. This study also disclosed a novel utilization of oxalyl chloride as facile
Synthesis and electrochemical characterization of donor–acceptor phenylazomethine dendrimers
作者:Rafael Juárez、Rafael Gómez、José L. Segura、Carlos Seoane
DOI:10.1016/j.tetlet.2005.10.073
日期:2005.12
The synthesis of the first donor–acceptor phenylazomethine dendrimers (4 and 5) is described. A convergent method is used via the condensation of aromatic ketones with an appropriately functionalized tri(aminophenyl)-s-triazine promoted by titanium (IV) chloride. Cyclic voltammetry investigations show a donor–acceptor behaviour due to the presence of the electron acceptor s-triazine core and the donor