The mild borylation of alkyl bromides
and chlorides with bis(neopentylglycolato)diborane
(B2neop2) mediated by iron-bis amide is described.
The reaction proceeds with a broad substrate scope and good functional
group compatibility. Moreover, sufficient catalytic activity was obtained
for primary and secondary alkyl halides. Mechanistic studies indicate
that the reaction proceeds through a radical pathway.
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