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Cobalt-Catalyzed Hydroalkylation of [60]Fullerene with Active Alkyl Bromides: Selective Synthesis of Monoalkylated Fullerenes

Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2011-08-17

Journal: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Included Journals: EI、SCIE、Scopus

Volume: 133

Issue: 32

Page Number: 12842-12848

ISSN: 0002-7863

Abstract: The Co-catalyzed hydroalkylation of C-60 with reactive alkyl bromides 1 (RBr) in the presence of Mn reductant and H2O at ambient temperature gave the monoalkylated C60 (2) in good to high yields. The use of CoLn/Mn/H2O under Ar atmosphere is crucial for the success of the present transformation. The reaction most probably proceeds through the Co (0 or I) complex-promoted generation of a radical (R-center dot) followed by addition to C-60. This hydroalkylation method was applied to the synthesis of zinc porphyrin attached C-60 (2l), dendrimer attached C-60 (2m), and fullerene dimer (2n), which were not easily available through the previously known methods.

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