Ferric perchlorate-mediated radical reactions of [60]fullerene

Synthesis of Cs-symmetrical C60 tetra-adducts via reactions of C60Cl6 with CH-acids and enol silyl ester

Here we report the synthesis of novel fullerene derivatives with attached aliphatic residues based on the previously unknown reactions of chlorofullerene C60Cl6 with CH-acids and silyl enol ether.

Copper-mediated synthesis of fullerooxazoles from [60]fullerene and N-hydroxybenzimidoyl cyanides

A novel and efficient copper-mediated [3 + 2] heteroannulation reaction of [60]fullerene with N-hydroxybenzimidoyl cyanides has been developed for the synthesis of fullerooxazoles. A possible reaction mechanism involving unique C-CN and N-OH bond cleavages and subsequent C-OH bond formation for N-hydroxybenzimidoyl cyanides is proposed to explain the generation of fullerooxazoles. In addition, the formed fullerooxazoles can be further electrochemically transformed into amidated 1,2-hydrofullerenes.

Synthesis of [60]fullerene-fused dihydrobenzooxazepinesviathe palladium-catalyzed oxime-directed C–H bond activation and subsequent electrochemical functionalization

The palladium-catalyzed heteroannulation of [60]fullerene with oximes affords the unprecedented seven-membered [60]fullerene-fused dihydrobenzooxazepines, which can be further derivatized electrochemically.

Synthesis of fullerotetrahydropyridazines via the copper-catalyzed heteroannulation of [60]fullerene with hydrazides

Fullerotetrahydropyridazines have been efficiently synthesized via the copper-catalyzed reaction of [60]fullerene with hydrazides.

Facile access to 2,5-diaryl fulleropyrrolidines: magnesium perchlorate-mediated reaction of [60]fullerene with arylmethylamines and aryl aldehydes

Reaction of [60]fullerene with arylmethanamines and aryl aldehydes in the presence of magnesium perchlorate generated a series of scarce 2,5-diaryl fulleropyrrolidines as cis isomers.

Ferric perchlorate-mediated one-step reaction of [60]fullerene with primary amides for the synthesis of fullerooxazoles

The reaction of [60]fullerene with amides promoted by cheap and easily available ferric perchlorate affords a series of interesting fullerooxazole derivatives.

Cu(OAc)2-promoted reaction of [60]fullerene with primary amines or diamines

The Cu(OAc)₂-mediated oxidative dehydrogenative addition of easily available primary amines to C₆₀ allows the concise preparation of aziridinofullerenes. Moreover, the Cu(OAc)₂-promoted reaction of C₆₀ with diamines affords C₆₀-fused cyclic 1,2-diaminated fullerenes.

Copper(i)-catalyzed heteroannulation of [60]fullerene with ketoxime acetates: preparation of novel 1-fulleropyrrolines

A cuprous bromide-catalyzed heteroannulation reaction of [60]fullerene with ketoxime acetates has been exploited to prepare novel 1-fulleropyrrolines via N–O bond cleavage and C–C/C–N formation under thermal conditions.

Synthesis of ortho acid ester-type 1,3-dioxolanofullerenes: radical reaction of [60]fullerene with halocarboxylic acids promoted by lead(IV) acetate

A lead(IV) acetate-promoted radical reaction of [60]fullerene with halocarboxylic acids has been exploited to synthesize rare ortho acid ester-type 1,3-dioxolanofullerenes, the hydroxyl group of which can be further transformed to an ester or ether group. Intriguingly, an ortho acid ester-type 1,3-dioxolanofullerene can also be converted to a 1,4-dioxanonofullerene in the presence of a base or manipulated to another ortho acid ester-type 1,3-dioxolanofullerene by reaction with a stronger halocarboxylic acid. Moreover, two possible reaction pathways leading to the observed products are also proposed.

Synthesis of oxazolidinofullerenes/thiazolidinofullerenes: novel reaction of [60]fullerene with isocyanates/isothiocyanates promoted by ferric perchlorate

The facile one-step reaction of [60]fullerene with isocyanates/isothiocyanates in the presence of ferric perchlorate generates a series of novel oxazolidinofullerenes/thiazolidinofullerenes.

Palladium-catalyzed heteroannulation of [60]fullerene with N-(2-arylethyl) sulfonamides via C–H bond activation

The palladium-catalyzed heteroannulation of [60]fullerene with N-(2-arylethyl) sulfonamides via C–H activation affords [60]fullerene-fused tetrahydrobenzazepines, which can be further functionalized.