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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 232030Generated: October 31, 2026

Hydrochloric Acid → HCID 20030629, compound

https://huagongshe.com/reaction/232030

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPhenylacetoneHCID 7678—
ReactantHCID 19780113HCID 19780113—
SolventEthanolHCID 702—
ProductHCID 20030629HCID 20030629—

Reaction Steps

4.8 g. (20 mmole) 6-(4-hydrazinophenyl)-2,3,4,5-tetrahydropyridazin-3-one hydrochloride (according to Example 2 (a)) are suspended in 75 ml. 2N hydrochloric acid and 75 ml. ethanol, mixed with 2.8 g. (21 mmole) phenylacetone, stirred for 3 hours at 25° C., filtered off with the suction and the title compound obtained is recrystallised from methanol. Yield 4.85 g. (80% of theory); m.p. 297°-299° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04851406
Source datasetuspto-grants-1989_07
ORD IDord-7d317507304d4c5fb086e4ced882c8c8
Source noteuspto-grants-1989_07