2,4 - Dibromoaniline (CAS 615 - 57 - 6) is a high - quality chemical compound. It has a molecular formula of C₆H₅Br₂N, and a molecular weight of approximately 266.92 g/mol. This compound usually appears as a light - yellow to brownish solid. It has a melting point in the range of around 73 - 76 °C, and its boiling point is relatively high. Its solubility characteristics show that it is insoluble in water but soluble in organic solvents such as ethanol, ether, and chloroform.
2,4 - Dibromoaniline has a wide range of applications in various industries. In the field of organic synthesis, it serves as a key intermediate. It can be used to synthesize various complex organic compounds, such as pharmaceuticals, dyes, and pesticides. For example, in pharmaceutical synthesis, it can be involved in the creation of certain antibacterial and anti - inflammatory drug molecules. In the dye industry, it can be used to prepare dyes with special color - fastness and brightness. In the pesticide field, it can be used to synthesize pesticides with high efficiency and low toxicity.
When using 2,4 - Dibromoaniline, it is crucial to follow strict safety procedures. First, ensure that the working environment has good ventilation to prevent the inhalation of dust or fumes. Wear appropriate personal protective equipment, including safety goggles, gloves, and a lab coat. When weighing or transferring the compound, use clean and dry instruments to avoid contamination. For reactions involving this compound, follow the recommended reaction conditions, such as temperature, reaction time, and the ratio of reactants. Generally, it is added to the reaction system slowly under stirring to ensure uniform mixing.
Caso 1: Síntesis farmacéutica
In a research project for developing a new antibacterial drug, 2,4 - Dibromoaniline was used as a key building block. The reaction started with the acylation of 2,4 - Dibromoaniline with a specific acyl chloride under basic conditions. The reaction mixture was heated to 60 °C for 3 hours with continuous stirring. After the reaction, the product was purified by recrystallization from ethanol. The final product showed strong antibacterial activity against a wide range of bacteria in in - vitro tests.
Case 2: Dye Preparation
A dye manufacturer used 2,4 - Dibromoaniline to prepare a new type of yellow dye. They first diazotized 2,4 - Dibromoaniline and then coupled it with a selected coupling agent. The reaction was carried out at a low temperature (around 0 - 5 °C) to ensure the stability of the diazonium salt. The resulting dye was applied to fabric, and it showed excellent color - fastness to washing and sunlight.
Case 3: Pesticide Synthesis
A pesticide company synthesized a new pesticide using 2,4 - Dibromoaniline. They reacted it with a specific alkyl halide in the presence of a catalyst. The reaction was carried out in an organic solvent at reflux temperature for 5 hours. After purification, the pesticide was tested in the field and showed good control effects on certain pests while having low toxicity to non - target organisms.
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