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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1628249Generated: October 31, 2026

Hydrochloric Acid → HCID 86664826, compound

https://huagongshe.com/reaction/1628249

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHydrazine, ethyl-, ethanedioate (1:1)HCID 96181—
ReactantHCID 86664827HCID 86664827—
SolventMethanolHCID 887—
ProductHCID 86664826HCID 86664826410.5%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of (Z)-3-amino-3-(2-chloropyridin-4-yl)acrylonitrile 20.2.A (2590 mg, 14420 μmol), and ethylhydrazine oxalate (3220 mg, 2144 μmol) in MeOH (70 mL) was added 2N HCl (18 mL). The reaction was stirred at 80° C. for 2 hr, when LC/MS indicated the completion of the reaction (m/e: 223). The reaction was concentrated and worked up between saturated NaHCO3. and iPrOH/CHCl3. Silica gel chromatography afforded the desired product 20.2.B 1.96 g (61%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08785468B2
Source datasetuspto-grants-2014_07
ORD IDord-692e330f34ab4f098d11e6f671132539
Source noteuspto-grants-2014_07