HuagongsheHuagongshe Chemistry Print Report · For research reference only
Pyrrolidine → 2-(Dimethoxymethyl)-6-hydroxy-2,5,7,8-tetramethyl-chroman-4-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Pyrrolidine | HCID 31268 | — |
| Reactant | Pyruvic aldehyde dimethyl acetal | HCID 80650 | — |
| Reactant | Ethanone, 1-(2,5-dihydroxy-3,4,6-trimethylphenyl)- | HCID 10867205 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | 2-(Dimethoxymethyl)-6-hydroxy-2,5,7,8-tetramethyl-chroman-4-one | HCID 13051536 | 70% |
Reaction Steps
15.0 g (77 mmoles) of acetyl-trimethylhydroquinone, 10.5 g (89 mmoles) of 1,1-dimethoxy-propan-2-one and 9.30 g (131 mmoles) of pyrrolidine were reacted in toluene solution by a method similar to that of Example 1 to give the above product. Boiling point: 165°-170° C./6.10-5 mbar (bulb tube); yield: 70%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04515975 |
| Source dataset | uspto-grants-1985_05 |
| ORD ID | ord-3acfebb68dd044ffb37b002faf72c46d |
| Source note | uspto-grants-1985_05 |