Sciencemadness Discussion Board

Benzoyl chloride + 4-Aminoadamantan-1-ol

ChemichaelRXN - 14-2-2021 at 04:48

Hello,

I am going to be producing an esterification product with Benzoyl chloride + 4-Aminoadamantan-1-ol. 4-amino-1-adamantanyl benzoate. For this reaction that takes off an HCl to join the two compounds, I am guessing no catalyst is required like H2SO4.

I am looking forward to obtaining this final product as I havent seen it documented anywhere. It would make a great compound to research and I am guessing affinity would be to NMDA as an agonist and also Dopamine as and agonist and who knows what else.

If everything goes as planned, I will add to this thread with the synthesis.

It is the same way procaine is synthesized as shown.

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njl - 14-2-2021 at 14:28

The amine shown in the procaine synthesis is tertiary so it can't be acylated by benzoyl chloride, 4-Aminoadamantan-1-ol is a primary amine and will therefore react with benzoyl chloride. You need to protect the amine (at first glance phthaloyl group seems like it would be convenient but I couldn't say for sure).

ChemichaelRXN - 14-2-2021 at 15:13

Ok, interesting. Overlooked that, thanks. Maybe I can oxidize the amine to a nitro and reduce after or add a methyl group. That seems the most feasible based on chemicals available. I have KMnO4...it might work.



To add a methyl:

First, 120 mg (4 mmol) of paraformaldehyde was added to 25 mL of methanol under normal temperature and closed conditions, and the mixture was refluxed at 85 캜 until paraformaldehyde was dissolved. Subsequently, 296 mg (2.67 mmol) of 2-fluoroaniline and 299 mg (5.34 mmol) of potassium hydroxide were dissolved in 3 ml of methanol at room temperature, followed by mixing with paraformaldehyde reactant dissolved in methanol, Lt; / RTI > After 2 hours, the solution was cooled to 0 ° C and then 202 mg (5.34 mmol) of sodium borohydride was added slowly and refluxed again at 85 ° C for 1 hour. When the reaction was completed, the methanol was removed by a vacuum concentrator, and then 25 ml of water and 20 ml of ethyl acetate (3 times repeated) were added to take only the organic layer. The organic layer was washed with 20 ml of water and 20 ml of saturated brine, dried over magnesium sulfate and concentrated in vacuo to give 2-fluoro-N-methylaniline (yield 95%, purity 99%) in the form of a pink oil Example 1 was obtained.

[Edited on 14-2-2021 by ChemichaelRXN]

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ChemichaelRXN - 14-2-2021 at 15:17

I guess the sodium ethoxide pathway would work. I cant find too much on this one though. I will make ethyl benzoate and go for it.


njl - 14-2-2021 at 19:27

Maybe chlorinate with HCl to get 4-Aminoadamantan-1-chloride, followed by reaction with sodium benzoate

ChemichaelRXN - 15-2-2021 at 13:20

That sounds like a good idea. Any example of this reaction/procedure?
That is a pretty useful compound because I guess I can also try reacting the 4-amino-1-chloroadamantane with benzene to attach them as well, with an HCl byproduct and using FeCl3 catalyst. These new research compounds would be very interesting to add to my collection. Definitely unexplored.

[Edited on 15-2-2021 by ChemichaelRXN]

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njl - 16-2-2021 at 07:15

No specific ref, but I think that once the amine salt is formed the alcohol can be halogenated a la t-butyl alcohol to t-butyl chloride.

http://www.rsc.org/suppdata/books/184973/9781849739634/bk978...