175791-98-7Relevant academic research and scientific papers
Synthesis and self-association of first-generation 1,3,4-oxadiazole-containing dendrimers
Kraft, Arno
, p. 1463 - 1471 (1997)
Two 1,3,4-oxadiazole-containing dendrimers, 14 and 15, have been prepared employing a palladium-catalyzed carbonylation reaction as the key step of the synthesis. In order to shorten the reaction sequence, a new oxadiazole synthesis has been developed bas
Self-association of branched and dendritic aromatic amides
Kraft, Arno,Osterod, Frank
, p. 1019 - 1025 (2007/10/03)
Several branched and dendritic aromatic amides have been obtained by reacting tris(4-aminophenyl)-methane 3 either with aryl iodide 1 in a Pd-catalysed carbonylation or with carboxylic acids in the presence of the coupling agent triphenyl phosphite. Nonpolar aromatic substituents and solubilising groups at the periphery ensured that the resulting oligoamides were soluble in chloroform, whereas amide groups in the structural centre of the molecules accounted for strong self-association through hydrogen bonding in solution as evidenced by 1H NMR and vapour-pressure osmometry data. An alternative approach towards branched aramides is also presented which was based on the self-assembly of 1,3,5-tris(4,5-dihydroimidazol-2-yl)benzene 12 and various (amido)carboxylic acids.
Self-association of poly(aramide) dendrimers
Osterod, Frank,Kraft, Arno
, p. 1435 - 1436 (2007/10/03)
Two poly(aramide) dendrimers, which possess electron-deficient 1,3,4-oxadiazole and aromatic systems linked by amide units to a triphenylmethane core, strongly self-associate in chloroform solution through hydrogen bonding.
