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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2367183Generated: October 31, 2026

Hydrazine hydrate (1:1) → HCID 46214652, compound

https://huagongshe.com/reaction/2367183

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 51355192HCID 51355192—
CatalystAcetonitrileHCID 6342—
SolventEthanolHCID 702—
ProductHCID 46214652HCID 4621465268.9%

Reaction Conditions

Temperature80 °C

Reaction Steps

In a 25 mL flask under argon was added 4-[2-amino-6-(ethylamino)-4-pyrimidinyl]-2-fluorobenzonitrile (0.164 g, 0.442 mmol) followed by EtOH (3.5 mL). Hydrazine monohydrate (0.87 mL, 17.7 mmol) was added and the reaction mixture was stirred for 6 hours at 80° C. The reaction was cooled to room temperature and concentrated to near dryness. Water (3 mL) was added (orange oil was formed) followed by CH3CN (8 drops), and the mixture was sonicated. A light yellow precipitate was formed. The suspension was cooled on an ice bath and the solid was filtered, washed with water and dried under vacuum at 40° C. to afford the title compound (82 mg, 68%) as a light yellow solid. LC-MS (ES) m/z=270 [M+H]+. 1H NMR (400 MHz, DMSO-d6): δ 1.13 (t, J=7.2 Hz, 3H), 3.20-3.40 (m, 2H), 5.36 (s, 2H), 5.97 (s, 2H), 6.25 (s, 1H), 6.82 (bs, 1H), 7.41 (d, J=8.3 Hz, 1H), 7.69 (d, J=8.3 Hz, 1H), 7.84 (s, 1H), 11.50 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697685B2
Source datasetuspto-grants-2014_04
ORD IDord-4753264bad7f41b48cff1c73bcf48f36
Source noteuspto-grants-2014_04