HuagongsheHuagongshe Chemistry Print Report · For research reference only
Isopropylamine → HCID 21450245, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Isopropylamine | HCID 6363 | — |
| Reactant | 6-[4-(2,3-epoxypropoxy)-1-naphthyl]-4,5-dihydro-3(2H)-pyridazinone | HCID 21450222 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 21450245 | HCID 21450245 | 75% |
Reaction Steps
A mixture of 6-[4-(2,3-epoxypropoxy)-1-naphthyl]-4,5-dihydro-3(2H)-pyridazinone (10 g, 0.034 mole), methanol (100 ml) and isopropylamine (17.4 ml, 0.2 mole) was heated under reflux for one hour. Evaporation under reduced pressure gave an oil which was purified on a silica column with chloroform-methanol to give 6-[4-(2-hydroxy-3-isopropylaminopropoxy)-1-naphthyl]-4,5-dihydro-3(2H)-pyridazinone (9g, 75%, m.p. 131°-135° C.). The hydrochloride, crystallised from 2-propanol had m.p. 195°-197° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04011321 |
| Source dataset | uspto-grants-1977_03 |
| ORD ID | ord-31bb76df3f0145dc91bceccc7520390f |
| Source note | uspto-grants-1977_03 |