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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2035678Generated: November 1, 2026

1,2-Dichloroethane → N'-acetyl-4-bromo-2-methoxybenzohydrazide

https://huagongshe.com/reaction/2035678

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantAcetohydrazideHCID 14039—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant4-Bromo-2-methoxybenzoic acidHCID 13450755—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductN'-acetyl-4-bromo-2-methoxybenzohydrazideHCID 66684712—

Reaction Steps

A solution of 4-bromo-2-methoxybenzoic acid (950.7 mg, 4.11 mmol) in 8 ml of DMF was treated sequentially with EDC (1183 mg, 6.17 mmol) and HOBT (945 mg, 6.17 mmol) and stirred at room temperature for 10 minutes. The reaction was then treated with acetic hydrazide (366 mg, 4.94 mmol) and stirred at room temperature overnight. The reaction was dissolved in EtOAc and washed sequentially with saturated bicarbonate solution and brine. The aqueous washes were extracted once with EtOAc. Organics were combined, dried over sodium sulfate, and concentrated under reduced pressure to a white solid (1.37 g crude).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575150B2
Source datasetuspto-grants-2013_11
ORD IDord-99f8cedac2504e34bad35643b1c11511
Source noteuspto-grants-2013_11