3-Bromo-1-propanol, with the CAS number 627-18-9, is a high - quality chemical product offered at a low price. The chemical formula of 3 - Bromo-1 - propanol is C3H7BrO, and it has a molecular weight of approximately 139.0 g/mol. This compound appears as a clear, colorless to slightly yellow liquid at room temperature. It has a density of about 1.52 g/cm³. The boiling point of 3 - Bromo-1 - propanol is around 168 - 170 °C, while its melting point is -13 °C.
3 - Bromo-1 - propanol has a wide range of applications in various industries. In the pharmaceutical industry, it serves as an important intermediate for the synthesis of many drugs. It can participate in substitution reactions to introduce the bromopropyl group into different drug molecules, which can modify the pharmacological properties of the drugs, such as improving solubility or enhancing biological activity.
In the field of organic synthesis, it is a key building block. Chemists use it to create complex organic compounds. For example, it can react with nucleophiles to form new carbon - carbon or carbon - heteroatom bonds, which is crucial for the construction of organic skeletons.
It also finds applications in the production of specialty chemicals. These specialty chemicals can be used as additives in polymers, lubricants, or coatings to improve their performance, such as increasing wear resistance or enhancing adhesion.
When using 3 - Bromo-1 - propanol, proper safety precautions should be taken. Wear appropriate personal protective equipment, including safety goggles, gloves, and a lab coat.
In a laboratory setting, for a typical substitution reaction, first, measure the required amount of 3 - Bromo-1 - propanol accurately using a graduated cylinder or a pipette. Then, add it slowly to the reaction flask containing the appropriate solvent and other reactants under stirring. Control the reaction temperature carefully according to the reaction requirements, usually using a water bath or an oil bath. After the reaction is completed, carry out purification steps such as extraction, filtration, and distillation to obtain the desired product.
In an industrial - scale production, the process is more complex. It involves precise control of raw material feeding rates, reaction times, and the use of large - scale reaction vessels. Quality control measures should be implemented at each step to ensure the consistency and quality of the final product.
Case 1: A pharmaceutical company was developing a new anti - inflammatory drug. They used 3 - Bromo-1 - propanol as an intermediate. By reacting it with a specific amine compound, they were able to introduce a functional group that improved the drug's solubility in water. This led to better bioavailability and enhanced therapeutic effects. The reaction was carried out in a solvent mixture of ethanol and water at a temperature of 50 °C for 6 hours. After purification, the yield of the intermediate was over 80%, and the final drug showed promising results in pre - clinical trials.
Case 2: An organic synthesis laboratory was working on the synthesis of a novel fluorescent compound. They incorporated 3 - Bromo-1 - propanol into the synthetic route. By carefully controlling the reaction conditions, they were able to construct a complex organic structure. The final fluorescent compound had excellent fluorescence properties, which could be used in biological imaging applications. The reaction involved multiple steps, including substitution, oxidation, and cyclization reactions, and 3 - Bromo-1 - propanol played a crucial role in the initial substitution step.
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