Electrochemical regioselective alkylations of a [60]fulleroindoline with bulky alkyl bromides

A regioselective step-by-step C60Cl6 functionalization approach affords a novel family of C60Ar5Th'Th''H fullerene derivatives with promising antiviral properties

We report a novel reaction of the recently discovered family of fullerene derivatives C₁-C₆₀Ar₅Th' with thiophene derivatives Th''H yielding a previously unknown family of C₁-C₆₀Ar₅Th'Th''H compounds with three different types of functional aromatic addends attached to the carbon cage. The discovered reaction paves a way to the synthesis of novel C₆₀ fullerene derivatives with promising antioxidant and antiviral properties.

Electrochemically Promoted Benzylation of [60]Fullerooxazolidinone

Benzylation of the electrochemically generated dianion from N-p-tolyl-[60]fullerooxazolidinone with benzyl bromide provides three products with different addition patterns. The product distribution can be dramatically altered by varying the reaction conditions. Based on spectral characterizations, these products have been assigned as mono-benzylated 1,4-adduct and bis-benzylated 1,2,3,16- and 1,4,9,25-adducts, respectively. The assigned 1,2,3,16-adduct has been further established by X-ray diffraction analysis. It is believed that the 1,4-adduct is obtained by decarboxylative benzylation of the dianionic species, while bis-benzylated 1,2,3,16- and 1,4,9,25-adducts are achieved via a rearrangement process. In addition, the electrochemical properties of these products have been studied.

Methanofullerene Synthesis via Photogenerated Fullerene Radical Anion Intermediates

This work describes the synthesis of PCBM ([6,6]-phenyl-C₆₁-butyric acid methyl ester) derivatives and other methanofullerene derivatives via generation of fullerene radical anions under photoirradiation and controlled by photoswitching, without preparation, a strong reducing agent, or precise control of the reaction conditions.