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Iodomethylzinc iodide

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Iodomethylzinc iodide is the active reagent in the Simmons–Smith reaction. For example, iodomethylzinc iodide, formed in situ from diiodomethane and a zinc-copper couple reacts with cyclohexene to give norcarane (bicycloheptane).

An example of the Simmons-Smith reaction
An example of the Simmons-Smith reaction

Iodomethylzinc iodide may also be generated by the reaction of diazomethane with zinc iodide, or by the reaction of methylene iodide with diethylzinc.

References

  1. ^ Smith, R. D.; Simmons, H. E. "Norcarane". Organic Syntheses; Collected Volumes, vol. 5, p. 855.
Zinc compounds
Zinc(I)
Organozinc(I) compounds
Zinc(II)
Organozinc(II) compounds
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