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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 49902Generated: October 25, 2026

Hydrazine hydrate (1:1) → 4-(4-pyrimidinylmethyl)-1(2H)-phthalazinone

https://huagongshe.com/reaction/49902

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant2-Pyrimidin-4-yl-indan-1,3-dioneHCID 12619085—
SolventEthanolHCID 702—
Product4-(4-pyrimidinylmethyl)-1(2H)-phthalazinoneHCID 10681389—

Reaction Steps

1.20 g (5.35 mmol) 2-pyrimidin-4-yl-indan-1,3-dione in 30 ml ethanol is spiked with 345 μl (6.96 mmol) hydrazine hydrate and heated for 5 h to 100° C. After cooling, the product is filtered off and washed with ethanol: m.p.: 204-206° C.; Anal. calc.(C13H10N4O.0.5 H2O) C, 63.15%; H, 4.48%; N, 22.66%. found C, 63.3%; H, 4.5%; N, 22.7%; FAB MS (M+H)+=239.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06710047B2
Source datasetuspto-grants-2004_03
ORD IDord-a52517c43eb84baba45a001b9d3b7530
Source noteuspto-grants-2004_03