Ar. Katritzky et al., A NEW AND EFFICIENT CONVERSION OF ALKYLPHENOLS INTO THE CORRESPONDINGSUBSTITUTED SALICYLIC ACIDS, Synthetic communications, 23(8), 1993, pp. 1175-1182
A three-step sequence suitable for the synthesis of alkyl substituted
salicylic acids from the corresponding alkylphenols involves ortho-dir
ected lithiation of the methoxymethyl aryl ethers followed by quenchin
g with carbon dioxide and deprotection under acidic conditions.