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2-Methylimidazole

Chemical compound From Wikipedia, the free encyclopedia

2-Methylimidazole
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2-Methylimidazole is an organic compound that is structurally related to imidazole with the chemical formula CH3C3H2N2H. It is a white or colorless solid that is highly soluble in polar organic solvents and water. It is a precursor to a range of drugs and is a ligand in coordination chemistry.

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Synthesis and reactions

It is prepared by condensation of glyoxal, ammonia and acetaldehyde, a Radziszewski reaction. Nitration gives 5-nitro derivative.[1]

2-Methylimidazole is a sterically hindered imidazole that is used to simulate the coordination of histidine to heme complexes. It can be deprotonated to make imidazolate-based coordination polymers.[2]

Applications

2-Methylimidazole is a precursor to the several members of the nitroimidazole antibiotics that are used to combat anaerobic bacterial and parasitic infections.[3][1]

Safety

It has low toxicity with an LD50 (rat, oral) of 1300 mg/kg, but it is strongly irritating to the skin and eyes.[1]

2-Methylimidazole is a REACH Regulation Candidate Substance of Very High Concern due to its endocrine disrupting properties.[4]

References

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