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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1623130Generated: November 2, 2026

Water → HCID 69507133, compound

https://huagongshe.com/reaction/1623130

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
ReactantSodium DithioniteHCID 24489—
ReactantHCID 57455396HCID 57455396—
Catalyst1,1'-Diethyl-4,4'-bipyridinium dibromideHCID 11474262—
SolventDichloromethaneHCID 6344—
ProductHCID 69507133HCID 69507133—

Reaction Steps

Water (200 mL), sodium hydrosulfite (90.9 g, 522.3 mmol), ethyl viologen dibromide (0.64 g, 1.74 mL mmol) and potassium carbonate (95.0 g, 687 mmol) were sequentially added to a solution of (7-bromo-3-nitroquinolin-4-yl)(4,4-dimethoxybutyl)amine in dichloromethane and stirred overnight at ambient temperature. The layers were separated and the organic layer was washed sequentially with water (5×200 mL), saturated aqueous sodium bicarbonate, and brine, dried over magnesium sulfate, and concentrated under reduced pressure to afford 59.3 g of 7-bromo-N4-(4,4-dimethoxybutyl)quinoline-3,4 diamine as a brown oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08778963B2
Source datasetuspto-grants-2014_07
ORD IDord-c1d66cce282e4bbd87bb8b066b0b73e2
Source noteuspto-grants-2014_07