Campbell, Curt B. published the artcileAmberlyst-15-catalyzed alkylation of phenolics with branched alkenes. Rearrangement of tert-alkylphenols and catechols to sec-alkyl isomers, HPLC of Formula: 1139-46-4, the publication is Industrial & Engineering Chemistry Research (1990), 29(4), 642-7, database is CAplus.
Alkylation of PhOH or catechol with olefins capable of forming tert-alkylcarbonium ions, catalyzed by Amberlyst 15, gave the corresponding tert-alkylphenols at 25-130°, with higher temperatures favoring the para isomer. Alkylations at 140-150° unexpectedly gave sec-alkylphenols, with both ortho and para isomers being formed in almost equal amounts The driving force of the reaction appeared to be the low stability of the tert-alkylphenols, leading to reversibility of the alkylation reaction. The rearrangement of tert-alkylphenols to sec-alkylphenols was favored when the tert-alkyl substituent was C>4.
Industrial & Engineering Chemistry Research published new progress about 1139-46-4. 1139-46-4 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Phenol, name is 4-(2,4,4-Trimethylpentan-2-yl)benzene-1,2-diol, and the molecular formula is C14H22O2, HPLC of Formula: 1139-46-4.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts