Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Furfural | HCID 7362 | — |
| Reactant | 1,4-Cyclohexanedione | HCID 12511 | — |
| Reactant | Lithium Chloride | HCID 433294 | — |
| Solvent | 1,3-Dimethyl-2-imidazolidinone | HCID 6661 | — |
| Product | HCID 11019639 | HCID 11019639 | 70.5% |
Reaction Steps
A mixture of 1,4-cyclohexanedione (5.6 g; 50 mmol), furan-2-carbaldehyde (4.8 g; 50 mmol) and anhydrous lithium chloride (2.1 g; 50 mmol) in 1,3-dimethyl-2-imidazolidinone (20 ml) was heated with stirring over an a oil bath at atmospheric pressure. The temperature of the bath was maintained at 165° C. for 1 h. The cooled reaction mixture was poured into water (300 ml) and extracted with ethyl acetate (2×150 ml). The combined organic layers were washed with water (2×100 ml), dried over magnesium sulphate and filtered. The organic solvent was removed in vacuo. The residue (9.4 g) was purified by flash chromatography using a silica gel column and toluene/ethyl acetate (90:10) as eluent, to give 6.7 g (70%) of 3-furfurylhydroquinone.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06676851B1 |
|---|
| Source dataset | uspto-grants-2004_01 |
|---|
| ORD ID | ord-e660d1e57d044a42aa799c5eba788397 |
|---|
| Source note | uspto-grants-2004_01 |
|---|