Synthesis of [60]Fullerene-Fused Sultones via Sulfonic Acid Group-Directed C–H Bond Activation
摘要:
Functionalization with the sulfonic acid group as the directing group in a C-H activation reaction has been revealed for the first time. [60]Fullerene has been employed in the unprecedented palladium-catalyzed C-H activation reaction of arylsulfonic acids to afford [60]fullerene-fused sultones.
Synthesis of [60]Fullerene-Fused Sultones via Sulfonic Acid Group-Directed C–H Bond Activation
摘要:
Functionalization with the sulfonic acid group as the directing group in a C-H activation reaction has been revealed for the first time. [60]Fullerene has been employed in the unprecedented palladium-catalyzed C-H activation reaction of arylsulfonic acids to afford [60]fullerene-fused sultones.
Electroreductive Transformation of [60]Fullerosultones into Fullerosulfonic Acids
作者:Rui Liu、Fei Li、Yang Xiao、Dan-Dan Li、Cheng-Lin He、Wei-Wei Yang、Xiang Gao、Guan-Wu Wang
DOI:10.1021/jo400920f
日期:2013.7.19
Novel C-60 derivatives of a singly bonded dimer and a 1,4-adduct bearing a sulfonic acid functionality have been prepared via the electroreductive transformation of a [60]fullerosultone. It has been shown that the reaction of the in situ formed dianion with benzyl bromide is initiated by a ring-opening of the [60]fullerosultone via the C-60-O bond cleavage upon receiving one electron. The [60]fullerosultone dianion is electrooxidized at 0.40 V to afford the singly bonded dimer species, which can be further electrooxidized at 1.30 V to restore the starting material [60]fullerosultone. The reaction mechanism is studied with the cyclic voltammetry and vis-NIR spectroscopy.