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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2304428Generated: October 31, 2026

4-Bromoaniline → HCID 178509171, compound

https://huagongshe.com/reaction/2304428

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-BromoanilineHCID 7807—
ReactantMalononitrileHCID 8010—
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant(4-Bromophenyl)carbonohydrazonoyl dicyanideHCID 23273954—
ProductHCID 178509171HCID 17850917178%

Reaction Steps

This compound was prepared using 125 mg (0.5 mmol) of 2-[(4-bromophenyl)-hydrazono]malononitrile, which was derived from 4-bromoaniline (172 mg, 1.0 mmol) and malononitrile (1.5 mmol) as described in Example 8, and hydrazine hydrate. The hydrazine hydrate was added to the solution at a temperature of 75° C. despite the fact that the starting material had not fully dissolved. The solution cleared briefly and then a precipitate formed. The resulting solid was isolated by filtration, washed with ethanol, and dried to yield 109 mg (78%) of the title compound as a yellow solid. 1H NMR (ppm, DMSO-d6): 6.15 (br s, 4H), 7.52 (d, 2H), 7.61 (d, 2H), 10.71 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06436915B1
Source datasetuspto-grants-2002_08
ORD IDord-b132d22b2118440cba89f31e52df0f5f
Source noteuspto-grants-2002_08