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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 596677Generated: October 30, 2026

Isopropylamine → HCID 21450245, compound

https://huagongshe.com/reaction/596677

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropylamineHCID 6363—
Reactant6-[4-(2,3-epoxypropoxy)-1-naphthyl]-4,5-dihydro-3(2H)-pyridazinoneHCID 21450222—
SolventMethanolHCID 887—
ProductHCID 21450245HCID 2145024575%

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04011321
Source datasetuspto-grants-1977_03
ORD IDord-31bb76df3f0145dc91bceccc7520390f
Source noteuspto-grants-1977_03