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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1014264Generated: October 30, 2026

Methane → HCID 59441781, compound

https://huagongshe.com/reaction/1014264

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethaneHCID 297—
ReactantHydrazineHCID 9321—
ReactantHCID 59441982HCID 59441982—
CatalystIron chloride (FeCl3)HCID 24380—
SolventMethanolHCID 887—
ProductHCID 59441781HCID 5944178194%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 1-(1-methylethyl)-4-[2-methyl-5-(methyloxy)-4-nitrophenyl]piperazine (1.78 g, 6.08 mmol) in methanol (75 mL) was added hydrazine (1.33 mL, 7.0 mmol), iron (III) chloride (0.200 g, 1.22 mmol) and activated charcoal (2 g). The resulting slurry was warmed to 60° C. and maintained overnight. The next morning the slurry was filtered and concentrated to a residue. The residue was partitioned between ethyl acetate and sat. NaCl(aq). The organic layer was washed twice with saturated brine, dried over sodium sulfate, and taken to a residue under reduced pressure to afford 5-methyl-4-[4-(1-methylethyl)-1-piperazinyl]-2-(methyloxy)aniline (1.50 g, 94% yield) of sufficient purity for use directly in the next step. 1H NMR (400 MHz, DMSO-d6) δ ppm 0.98 (d, J=6.60 Hz, 6 H), 2.04 (s, 3 H), 2.52 (s, 4 H), 2.64 (dt, J=12.92, 6.55 Hz, 1 H), 2.68-2.72 (m, 4 H), 3.69 (s, 3 H), 4.28 (s, 2 H), 6.41 (s, 1 H), 6.55 (s, 1 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07981903B2
Source datasetuspto-grants-2011_07
ORD IDord-004df93bb68b4e849e930fceefef134b
Source noteuspto-grants-2011_07