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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 618256Generated: October 29, 2026

Water → 5-chloro-2-methyl-3-nitroaniline

https://huagongshe.com/reaction/618256

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium DithioniteHCID 24489—
ReactantHCID 2749341HCID 2749341—
SolventMethanolHCID 887—
Product5-chloro-2-methyl-3-nitroanilineHCID 274934585.9%

Reaction Steps

5-Chloro-2-methyl-1,3-dinitro-benzene (1.96 g, from above) was suspended in methanol (80 mL) and water (20 mL) under N2. Sodium dithionite (5.51 g) was added portionwise and the mixture was stirred at room temperature for 3 hr. The reaction mixture was filtered and washed with methanol. The filtrate was then removed under reduced pressure and the residue was partitioned between ethyl acetate (150 mL) and brine (150 mL). The organic layer was dried over magnesium sulfate and evaporated to afford 5-chloro-2-methyl-3-nitro-phenylamine (1.45 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05952362
Source datasetuspto-grants-1999_09
ORD IDord-0e51da76bfe7483a8f559cf29374efbe
Source noteuspto-grants-1999_09