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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1942975Generated: October 31, 2026

Methyl 4-bromobenzoate → 4-Bromobenzohydrazide

https://huagongshe.com/reaction/1942975

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl 4-bromobenzoateHCID 12081—
ReactantHydrazine hydrate (1:1)HCID 24654—
SolventEthanolHCID 702—
Product4-BromobenzohydrazideHCID 2221967%

Reaction Steps

First, 3.0 g (13.9 mmol) of methyl-4-bromobenzoate was put in a 100-mL three-neck flask, 10 mL of ethanol was added therein, and the mixture was stirred. Thereafter, 4.0 mL of hydrazine monohydrate was added therein, and the mixture was heated and stirred at 78° C. for 5 hours. The obtained solid was washed with water and collected by suction filtration; thus, 2.0 g of a white solid of 4-bromobenzohydrazide that was an object was obtained (yield: 67%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08389735B2
Source datasetuspto-grants-2013_03
ORD IDord-5531113d736e4bed8d35827926f48594
Source noteuspto-grants-2013_03