14 Dibromobutane Zauba
The method of making 1,4-dibromobutane
If you want to make 1,4-dibromobutane (1,4-Dibromobutane Zauba), you should follow a reasonable method.
Take an appropriate amount of butanol first, put it in a clean flask, and add an appropriate amount of concentrated sulfuric acid. The ratio of the two should be carefully considered to ensure a smooth reaction. This concentrated sulfuric acid is a catalyst that can promote the speed of the reaction.
Add hydrobromic acid slowly to it, and the speed of dropwise addition should not be too hasty. It must be done slowly to prevent the reaction from being too violent. When adding droplets, pay close attention to the temperature in the flask, and control the temperature in a water bath or oil bath to keep the temperature constant within a suitable range, usually around a certain temperature range. This range needs to be accurately grasped, which is related to the success or failure of the reaction.
When the reaction is completed, the phenomenon can be observed, the color of the solution may change, or there may be bubbles escaping. After the reaction is completed, the resulting mixture is separated and purified. The organic phase is first separated by a separation funnel, and then washed with an appropriate amount of water to remove impurities. Next, anhydrous sodium sulfate is dried to remove the remaining moisture.
Then, by distillation, a fraction with a specific boiling point is collected. This fraction is pure 1,4-dibromobutane. When distilling, the device must be tight and the heat must be appropriate to obtain high-purity products.
In this way, 1,4-dibromobutane can be prepared according to this step.
