HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → [6-(3-Chloro-4-fluoro-phenyl)-pyridazin-4-yl]-methanol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | HCID 22240138 | HCID 22240138 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | [6-(3-Chloro-4-fluoro-phenyl)-pyridazin-4-yl]-methanol | HCID 22240129 | 26% |
Reaction Steps
3-(3-Chloro-4-fluoro-phenyl)-5-methoxymethoxymethyl-pyridazine (0.06 g, 0.21 mmol) was dissolved in dioxane (2 ml) and treated with 1N HCl (0.2 ml, 0.2 mmol). The reaction mixture was refluxed for 1.5 hours then cooled to room temperature. Water and ethyl acetate were added. The aqueous layer was extracted twice with ethyl acetate. The combined organic layers were dried over Na2SO4, filtered and concentrated in vacuo. The residue was chromatographed over silica gel (hexane-ethylacetate 1:1 then 2:8) to provide [6-(3-chloro-4-fluoro-phenyl)-pyridazin-4-yl]-methanol (13 mg, 26%) as a light yellow solid, MS: m/e=239.2 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07005432B2 |
| Source dataset | uspto-grants-2006_02 |
| ORD ID | ord-18131378fce447d2b10a6396fc58823d |
| Source note | uspto-grants-2006_02 |