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

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Abstract 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,… Click to show full abstract

Abstract 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.

Keywords: dendrimers dendrons; possessing mixed; dendrons possessing; based dendrimers; synthesis sulfonimide; sulfonimide based

Journal Title: Tetrahedron Letters
Year Published: 2019

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