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Synthesis of sulfonimide-based dendrimers and dendrons possessing mixed 1 → 2 and 1 → 4 branching motifs
Tetrahedron Letters ( IF 1.5 ) Pub Date : 2018-12-23 , DOI: 10.1016/j.tetlet.2018.12.052
Mykola Kolotylo , Volodymyr Holovatiuk , Julia Bondareva , Oleg Lukin , Vladimir Rozhkov

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.



中文翻译:

具有混合的1→2和1→4分支基序的基于磺酰亚胺的树枝状分子和树枝状分子的合成

描述了具有1→2和1→4支化类型的独特组合的树枝状大分子和氯磺基-树枝状分子的合成。该过程包括3,5-二硝基苯-1-磺酰氯,将其用于的persulfonylation两步制备的p -甲苯胺和4-(苄硫基)苯胺。将获得的四硝基化合物还原为相应的四胺。后者用八个4-甲苯磺酰基装饰,以提供相应的树枝状聚合物。具有N-氯代琥珀酰亚胺的具有4-(苄硫基)亚苯基核的树枝状聚合物的氧化导致在焦点处形成具有磺酰氯官能度的树枝状分子。

更新日期:2018-12-23
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