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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 403525Generated: November 1, 2026

Malononitrile → HCID 68642337, compound

https://huagongshe.com/reaction/403525

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalononitrileHCID 8010—
ReactantHCID 66633698HCID 66633698—
SolventEthanolHCID 702—
ProductHCID 68642337HCID 6864233732%

Reaction Conditions

Temperature110 °C

Reaction Steps

To a solution of 1-(2-fluorobenzyl)-5-(isoxazol-3-yl)-1H-pyrazole-3-carboximidamide (50 mg, 0.18 mmol) in ethanol (2 mL) was added malononitrile (35 mg, 0.53 mmol). After heating the solution to 110° C. for 6 hours, the solvent was removed in vacuo to give the crude product as a red oil. Purification by silica gel chromatography (0-10% methanol in dichloromethane) gave 2-(1-(2-fluorobenzyl)-5-(isoxazol-3-yl)-1H-pyrazol-3-yl)pyrimidine-4,6-diamine (I-103, 20 mg, 0.056 mmol, 32% yield) as a pink solid. 1H NMR (400 MHz, CDCl3) δ 8.45 (d, 1H), 7.31 (s, 1H), 7.19-7.14 (m, 1H), 7.01-6.96 (m, 1H), 6.92 (t, 1H), 6.74-6.71 (m, 1H), 6.58 (d, 1H), 5.90 (s, 2H), 5.57 (s, 1H), 5.03 (br s, 4H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08748442B2
Source datasetuspto-grants-2014_06
ORD IDord-245e4326193a4bb8b7c444d076a83c3f
Source noteuspto-grants-2014_06