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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 637514Generated: October 25, 2026

Acetic Acid → 1-[2-(2,4-Dichlorophenyl)-pentylidene]-2-ethoxycarbonylhydrazine

https://huagongshe.com/reaction/637514

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantHydrazinecarboxylic acid, ethyl esterHCID 20064—
Reactant2-(2,4-Dichlorophenyl)pentanenitrileHCID 3324522—
ReactantHCID 178418361HCID 178418361—
CatalystNickelHCID 935—
SolventMethanolHCID 887—
Product1-[2-(2,4-Dichlorophenyl)-pentylidene]-2-ethoxycarbonylhydrazineHCID 53963328—

Reaction Steps

22.8 g (0.1 mol) of 2-(2,4-dichlorophenyl)-valeronitrile, 10.4 g (0.1 mol) of hydrazinecarboxylic acid ethyl ester and 6.0 g (0.1 mol) of acetic acid are hydrogenated with 11.0 g of Raney nickel in 100 ml of 95% aqueous methanol at room temperature under a normal pressure of hydrogen for 4.5 hours. Filtration and crystallisation yield 22.1 g (70% of theory) of the above product; m.p. 127°-129° C.:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04556717
Source datasetuspto-grants-1985_12
ORD IDord-c582238550314889b33708bd125f639b
Source noteuspto-grants-1985_12