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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1196541Generated: October 31, 2026

Hydrochloric Acid → HCID 19898957, compound

https://huagongshe.com/reaction/1196541

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 86743362HCID 86743362—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductHCID 19898957HCID 19898957—

Reaction Steps

A solution of 2-(2H-phthalazin-1-on-2-yl)-N-methyl-N-benzylethylamine (41.5 g) in ethanol (1000 ml) and concentrated hydrochloric acid (50 ml) containing 5% palladium on charcoal (4.1 g) was stirred under a hydrogen atmosphere (50 p.s.i.) at room temperature for 18 hours. The reaction mixture was filtered and evaporated to afford a solid which was recrystallised from isopropanol to afford the title compound, yield 22.5 g, m.p. 200°-201°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05114952
Source datasetuspto-grants-1992_05
ORD IDord-6138bcfca9a6457b8d6acc06c0cd95c9
Source noteuspto-grants-1992_05