As an important organic compound, 9-fluorene methanol has been widely used in medicine, cosmetics, dyes, coatings and other fields. There are many methods for the preparation of 9-fluorene methanol, of which there are three commonly used methods:
1. Preparation of fluorenoxy ethanol by hydrogenation
Fluorenoxyethanol was added to the hydrogenation reactor, catalyst and hydrogen were added, and the reaction pressure was raised for 6-8 hours to obtain 9-fluorene methanol.
The method has the advantages of simple reaction, short reaction time and easy separation of products.
2. Preparation of fluorene and methanol by hydrogenation
Fluorenane was added to hydrogenation reactor, catalyst and methanol were added, and hydrogenation reaction was carried out to obtain 9-fluorene methanol.
The method has the advantages of fast reaction rate and wide application range.
3. Preparation of fluorene catalyzed by methanol acid
Fluorene and methanol were added to the reactor, acid catalyst was added, and the reaction was heated to get 9-fluorene methanol.
The method is easy to obtain raw materials, mild reaction conditions and suitable for small batch production.
In short, there are a variety of preparation methods of 9-fluorene methanol, we only need to choose suitable for their own process needs at the same time, grasp the reaction conditions, in order to achieve better results. At the same time, 9-fluorene methanol has a wide range of applications, and there will be more in-depth research and application in the future.