HuagongsheHuagongshe Chemistry Print Report · For research reference only
Benzene → HCID 21474561, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Benzene | HCID 241 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Diphosgene | HCID 10426 | — |
| Reactant | 5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-ol | HCID 268786 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 21474561 | HCID 21474561 | — |
Reaction Steps
4.1 g (20 mmol) of 5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthol, 1.2 ml of trichloromethyl chloroformate and 40 ml of benzene are introduced into a round-bottomed flask. 3 ml (21 mmol) of triethylamine are added dropwise and the mixture is stirred at room temperature for twelve hours. The reaction medium is poured into water, the mixture is extracted with ethyl ether and the organic phase is separated after settling has taken place, then dried over magnesium sulphate and evaporated. The residue obtained is purified by chromatography on a silica column and eluted with a mixture of dichloromethane and hexane (40:60). After evaporation of the solvents, 4 g (75%) of the expected chloroformate are collected in the form of a colorless oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05439925 |
| Source dataset | uspto-grants-1995_08 |
| ORD ID | ord-fbc6657477b343d8987f4d653aafa89a |
| Source note | uspto-grants-1995_08 |