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Reactions of fluoroarene-Cr(CO)_3 complexes with SmI_2 andcarbonyl compounds in THF/HMPA at-40— -60℃ affordedthe corresponding radical aromatic substitution products in highyield. Compared to the corresponding chloroarene-Cr.(CO)_3complexes, fluoroarene-Cr(CO)_3 complexes showed a higher ef-ficiency and slightly lower regioselectivity.
Reactions of fluoroarene-Cr (CO) _3 complexes with SmI_2 and carbonyl compounds in THF / HMPA at-40- -60 ℃ afforded the corresponding radical aromatic substitution products in high field. Compared to the corresponding chloroarene-Cr. (CO) _3complexes, fluoroarene-Cr (CO) _3 complexes showed a higher ef-ficiency and slightly lower regioselectivity.