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Updated: Jan 1, 2026

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Bis(imino)pyridine iron complexes for catalytic carbene transfer reactions
Ban Wang1, Isaac G Howard1, Jackson W Pope1
1Chemistry Department , Western Kentucky University , 1906 College Heights Boulevard , Bowling Green , Kentucky 42101 , USA .
Abstract:
The bis(imino)pyridine iron complex, for the first time, is developed as an effective metal carbene catalyst for carbene transfer reactions of donor-acceptor diazo compounds. Its broad catalytic capability is demonstrated by a range of metal carbene reactions, from cyclopropanation, cyclopropenation, epoxidation, and Doyle-Kirmse reaction to O-H insertion, N-H insertion, and C-H insertion reactions. The asymmetric cyclopropanation of styrene and methyl phenyldiazoacetate was successfully achieved by the new chiral bis(imino)pyridine iron catalyst, which delivers a new gateway for the development of chiral iron catalysis for metal carbene reactions.
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