5-Bromo-6-methyl-1H-benzimidazole(CAS: 116106-16-2)

5-Bromo-6-methyl-1H-benzimidazole is a white or off-white crystalline solid with a molecular weight of approximately 233.04 g/mol. It has a solubility of 0.012 g/100 mL in water and is soluble in organic solvents like methanol and acetonitrile. The compound demonstrates moderate reactivity, particularly in substitution reactions. It is stable under normal conditions but should be stored in a dry, shaded area away from direct sunlight and moisture.

5-Bromo-6-methyl-1H-benzimidazole can be synthesized via bromination of 6-methyl-1H-benzimidazole using N-bromosuccinimide (NBS) in the presence of a radical initiator, such as benzoyl peroxide. The reaction is typically conducted in an inert atmosphere to prevent oxidation. The yield is generally around 70-80%, and the product can be purified by recrystallization from ethanol or methanol.

5-Bromo-6-methyl-1H-benzimidazole finds applications in various industries, including pharmaceuticals, where it serves as a starting material for the synthesis of medicinal compounds. It also has uses in the production of sensors and semiconductors due to its electronic properties. Additionally, it is sometimes employed in polymer synthesis for its chemical stability and reactivity.

Proper handling of 5-Bromo-6-methyl-1H-benzimidazole requires the use of personal protective equipment (PPE), including gloves, safety goggles, and a lab coat. This compound should be stored in a cool, dry, and shaded area away from direct sunlight and moisture. In case of a spill, it should be cleaned up using appropriate PPE and proper waste disposal methods. The Safety Data Sheet (SDS) for this compound should be consulted for detailed handling and emergency procedures.