The utility of any chemical intermediate hinges on its well-defined properties and predictable reactivity. 3,4-Dibromotoluene, with its unique arrangement of functional groups, presents a fascinating case study for organic chemists. Understanding its physical characteristics, spectroscopic signatures, and chemical behavior is essential for its effective application in synthesis. NINGBO INNO PHARMCHEM CO.,LTD. provides access to this critical intermediate, enabling researchers to conduct detailed investigations into its chemical potential.

Physically, 3,4-Dibromotoluene is typically described as a light yellow liquid. Its molecular formula is C₇H₆Br₂, with a molecular weight of approximately 249.93 g/mol. Key physical properties include a melting point of around -10 °C and a boiling point of approximately 250.5 °C at 760 mmHg. These properties are important considerations for storage, handling, and reaction setup. The presence of two bromine atoms significantly influences its density, making it considerably heavier than toluene.

Spectroscopic analysis is vital for confirming the identity and purity of 3,4-Dibromotoluene. Nuclear Magnetic Resonance (NMR) spectroscopy is particularly informative. The ¹H NMR spectrum will show a distinct singlet for the methyl protons, typically around 2.3 ppm, and complex multiplets for the aromatic protons, influenced by the neighboring bromine atoms and the methyl group. The ¹³C NMR spectrum further delineates the unique carbon environments, including the carbons bearing bromine atoms and the methyl-substituted carbon. Mass spectrometry provides definitive confirmation of the molecular weight and the characteristic isotopic pattern for a dibrominated compound, with high-resolution techniques enabling precise elemental composition determination.

The reactivity of 3,4-Dibromotoluene is dominated by its two bromine atoms. These can undergo various substitution and coupling reactions. In palladium-catalyzed cross-coupling reactions, the two C-Br bonds exhibit similar reactivity, which can lead to challenges in achieving regioselective mono-functionalization. However, this characteristic also allows for precise difunctionalization. Computational studies, particularly those employing Density Functional Theory (DFT), are instrumental in understanding the electronic factors governing these reactions and predicting reactivity at specific sites. NINGBO INNO PHARMCHEM CO.,LTD. ensures the quality and consistency of their 3,4-Dibromotoluene to support reliable chemical research.

The compound's role as an intermediate means that its chemical transformations are central to its value. Whether being converted into pharmaceuticals, agrochemicals, or specialized materials, the predictable reactivity of 3,4-Dibromotoluene, when properly understood and controlled, is key to successful synthesis. Its chemical properties make it a cornerstone for developing innovative solutions across multiple industries.