Synthesis of sulfonimide-based dendrimers and dendrons possessing mixed 1 → 2 and 1 → 4 branching motifs

Autor: Julia Bondareva, Mykola V. Kolotylo, Vladimir V. Rozhkov, Oleg Lukin, V. M. Holovatiuk
Rok vydání: 2019
Předmět:
Zdroj: Tetrahedron Letters. 60:352-354
ISSN: 0040-4039
Popis: The synthesis of dendrimers and a chlorosulfo-dendron possessing a unique combination of 1 → 2 and 1 → 4 branching types is described. The procedure consists of a two-step preparation of 3,5-dinitrobenzene-1-sulfonyl chloride, which was used for the persulfonylation of p-toluidine and 4-(benzylthio)aniline. The obtained tetranitro compounds were reduced to the corresponding tetraamines. The latter were decorated with eight 4-toluene sulfonyl groups each to furnish the corresponding dendrimers. Oxidation of the dendrimer possessing a 4-(benzylthio)phenylene core with N-chlorosuccinimide resulted in the formation of a dendron with a sulfonyl chloride functionality at the focal point.
Databáze: OpenAIRE