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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1166234Generated: November 4, 2026

Stannous chloride dihydrate → (4-Bromo-5-chloro-2-methoxyphenyl)hydrazine

https://huagongshe.com/reaction/1166234

Reaction equation

Participants

RoleNameHCIDCharge
ReactantStannous chloride dihydrateHCID 61436—
Reactant4-Bromo-5-chloro-2-methoxyanilineHCID 22997667—
ReactantSodium NitriteHCID 23668193—
Product(4-Bromo-5-chloro-2-methoxyphenyl)hydrazineHCID 2299764873%

Reaction Steps

The title compound was prepared by the general procedure described above for Preparations 2a-i using 4-chloro-5-bromo-2-aminoanisole (7.68 g), NaNO2 (2.25 g), and SnCl2.2H2O (15 g). Workup gave 5.5 g (73%) of (4-bromo-5-chloro-2-methoxyphenyl)hydrazine which was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06613786B2
Source datasetuspto-grants-2003_09
ORD IDord-55de0e9ade104b95bc6d561470a61ffe
Source noteuspto-grants-2003_09