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
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Phenol | HCID 996 | — |
| Reactant | Hexane, 2,5-dichloro-2,5-dimethyl- | HCID 80360 | — |
| Reactant | Aluminum(III) Chloride | HCID 6451240 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | 5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-ol | HCID 268786 | 89% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06884820B2 |
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| Source dataset | uspto-grants-2005_04 |
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| ORD ID | ord-d90484f25a20486489129bc3a8102765 |
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| Source note | uspto-grants-2005_04 |
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