HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetate → (5-Methylpyridin-2-yl)methanol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetate | HCID 175 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | 2-Pyridinemethanol, 5-methyl-, 2-acetate | HCID 12325384 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Product | (5-Methylpyridin-2-yl)methanol | HCID 12325387 | 84% |
Reaction Steps
2-Acetoxymethyl-5-methyl pyridine (30 g, 182 mmol) was dissolved in hydrochloric acid (100 mL, 4 N). The mixture was heated under reflux, until TLC (silica gel; triethylamine:ethyl acetate:petroleum ether 40-60=1:9:19) showed complete absence of the acetate (normally 1 hour). The mixture was cooled, brought to pH>11, extracted with dichloromethane (3×50 mL) and the solvent removed in vacuo. Pure 2-hydroxymethyl-5-methyl pyridine (18.80 g, 152 mmol, 84%) was obtained by Kugelrohr distillation (p=20 mm Hg, T=130° C.) as a slightly yellow oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06140294 |
| Source dataset | uspto-grants-2000_10 |
| ORD ID | ord-b971476841dd4042aa7782cc9397a8e2 |
| Source note | uspto-grants-2000_10 |