Hydroxyl group protection of 4-Hydroxy benzoicacid.
Dear Anju,
The following are the reagents for the protection of phenols since your compound is a derivative of phenol:
Triisopropylsilyl ether (TIPS)
tert-Butyldimethylsilyl ether (TBS, TBDMS)
Methyl ether
Benzyl ether (Bn)
Methoxymethyl acetal (MOM)
[2-(Trimethylsilyl)ethoxy]methyl acetal (SEM)
Please note that some of these reagents might react with the carboxylic acid moiety depending on the conditions.
I suggest that you check every reagent to see if it has selectivity to phenols.
Hoping this will be helpful,
Rafik
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