Bromoiodomethane is a

halomethane Halomethane compounds are derivatives of methane () with one or more of the hydrogen atoms replaced with halogen atoms ( F, Cl, Br, or I). Halomethanes are both naturally occurring, especially in marine environments, and human-made, most notably ...

with the formula BrCH₂I. It is a colorless liquid, although older samples appear yellow. The compound has been investigated as a reagent for

cyclopropanation In organic chemistry, cyclopropanation refers to any chemical process which generates cyclopropane () rings. It is an important process in modern chemistry as many useful compounds bear this motif; for example pyrethroids and a number of quinolon ...

by the Simmons-Smith reaction, but

diiodomethane Diiodomethane or methylene iodide, commonly abbreviated "MI", is an organoiodine compound. Diiodomethane is a colorless liquid; however, it decomposes upon exposure to light liberating iodine, which colours samples brownish. It is slightly solub ...

and

chloroiodomethane Chloroiodomethane is the halomethane with the formula is . It is a colorless liquid of use in organic synthesis. Together with other iodomethanes, chloroiodomethane is produced by some microorganisms. Applications Chloroiodomethane is used in cyc ...

are preferred. It also occurs naturally as the result of microbial action. Its critical point is at 367.85 °C and 6.3 MPa and refractive index is 1.6382 (20 °C, D).

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