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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1636616Generated: October 29, 2026

Hydrochloric Acid → HCID 22004788, compound

https://huagongshe.com/reaction/1636616

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDibromomethaneHCID 3024—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 22004789HCID 22004789—
CatalystCopper oxideHCID 14829—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 22004788HCID 2200478867%

Reaction Steps

A solution of N-[2-(6,7-dihydroxyindan-1-yl)ethyl]butyramide (1.13 g, 4.29 mmol.), dibromomethane (2.98 g, 17.2 mmol.), potassium carbonate (1.78 g, 12.9 mmol.) and copper-(II) oxide (34 mg, 0.43 mmol.) in N,N-dimethylformamide (15 mL) was stirred for 3 hours at 110° C. The reaction mixture was cooled, which was poured into water, followed by neutralizing with dilute hydrochloric acid. The organic matter was extracted with ethyl acetate. The extract solution was washed with a saturated aqueous saline solution and water, which was then dried over anhydrous magnesium sulfate, followed by distilling off the solvent under reduced pressure. The residue was purified by means of silica gel column chromatography (ethyl acetate) to afford the title compound (yield 785 mg, 67%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06034239
Source datasetuspto-grants-2000_03
ORD IDord-866d5ae17b9e410597402da8c9449403
Source noteuspto-grants-2000_03