Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1816423Generated: November 2, 2026

Phenol → 5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-ol

https://huagongshe.com/reaction/1816423

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenolHCID 996—
ReactantHexane, 2,5-dichloro-2,5-dimethyl-HCID 80360—
ReactantAluminum(III) ChlorideHCID 6451240—
SolventChloroformHCID 6212—
Product5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-olHCID 26878689%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of 2,5-dichloro-2,5-dimethyl-hexane (Intermediate 1, 97 g, 0.53 mol) and phenol (50 g, 0.53 mol) in CHCl3 (500 mL) at 0° C. was added AlCl3 (71 g, 0.54 mmol) portionwise. After stirring for 2 h at 0° C., the mixture was poured onto ice and was extracted with Et2O. The organic layer was washed with brine, dried over Na2SO4, and concentrated in vacuo. Recrystallization of the resulting solid from Et2O-hexane (1:1) gave the title compound as off-white crystals (95.7 g, 89%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06884820B2
Source datasetuspto-grants-2005_04
ORD IDord-d90484f25a20486489129bc3a8102765
Source noteuspto-grants-2005_04