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. Author manuscript; available in PMC: 2020 Jun 12.
Published in final edited form as: J Am Chem Soc. 2019 May 28;141(23):9106–9123. doi: 10.1021/jacs.9b03337

Scheme 2.

Scheme 2.

(a) A seminal example of C─H oxidative addition with reduced iron phosphine complex (Reference 18c), Np = 2-naphtyl. (b) First examples of catalytic C(sp2)─H borylation of toluene by iron complexes: aReference 20. Conditions: 72 h, UV (350 nm). 34% yield, 60:40 (m:p). bReference 10a, Conditions: 24 h, 450-W Hg lamp. 83% yield, 62:38 (m:p).