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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2169673Generated: October 31, 2026

Methyl 4-bromobenzoate → 4-Bromobenzohydrazide

https://huagongshe.com/reaction/2169673

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 numberUS09048436B2
Source datasetuspto-grants-2015_06
ORD IDord-1ec91c05bfa64a0798319c77d6e2e647
Source noteuspto-grants-2015_06