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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1465816Generated: November 1, 2026

Water → HCID 67449886, compound

https://huagongshe.com/reaction/1465816

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDimethylcarbamoyl ChlorideHCID 6598—
ReactantTriethylamineHCID 8471—
ReactantHCID 602112HCID 602112—
SolventDimethylformamideHCID 6228—
ProductHCID 67449886HCID 6744988692.4%

Reaction Steps

Under a nitrogen atmosphere, triethylamine (0.546 g, 5.4 mmol) was added to 2-nitro-5-piperazin-1-yl-phenylamine (1.0 g, 4.5 mmol) in dry DMF (8 mL) and the mixture was cooled in an ice water bath. Dimethylcarbamyl chloride (0.581 g, 5.4 mmol) was added slowly to this reaction mixture via syringe and the mixture was brought up to room temperature and stirred overnight. After overnight stirring, the reaction mixture was slowly poured into cold water (100 mL) and stirred for 1 hour resulting in the solidification of the product. This was filtered, dried give the product, 4-(3-Amino-4-nitro-phenyl) -piperazine-1-carboxylic acid dimethylamide, as a yellow solid, 1.2 g (92.4% yield), which was used without any further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08999993B2
Source datasetuspto-grants-2015_04
ORD IDord-d0c354364eb0440da9eaafcab7cab5e5
Source noteuspto-grants-2015_04