The quenching of lithium aluminum hydride with ethyl acetate is a matter of modern science. In chemistry, there are many subtle things. Lithium aluminum hydride (Lah) is also a strong reducing agent with strong properties, so it must be used with caution. After the reaction is completed, it should be quenched by a suitable method to prevent accidents.

This is the method of quenching lithium aluminum hydride with ethyl acetate. First, put the reaction vessel in a well-ventilated cabinet and slow down the ethyl acetate. At first, there may be a slight boiling, which is the beginning of the reaction between lithium aluminum hydride and ethyl acetate. Then, the reaction gradually slowed down.

When lithium aluminum hydride encounters ethyl acetate, it first interacts with the carbonyl group in the ester, and the hydrogen negative ion transfers, so that the carbonyl carbon obtains hydrogen and gradually becomes an alcohol. During this process, the heat release cannot be ignored. Therefore, during operation, it is necessary to control the temperature in an ice bath to avoid overheating the system and causing dangerous things.

And ethyl acetate is added, which should be slowly done to make the reaction smooth. When there is no obvious heat image and the bubbles gradually subside, it can be seen that the quenching has been completed. After that, the reaction solution is treated according to the usual method to obtain a pure product.

is the method, which is widely used in the field of organic synthesis, and can make the properties of lithium aluminum hydride tame, obtain the expected results, and ensure the safety of the experiment.