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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1824563Generated: October 31, 2026

Potassium Hydroxide → HCID 22168735, compound

https://huagongshe.com/reaction/1824563

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 22168747HCID 22168747—
SolventEthylene GlycolHCID 174—
ProductHCID 22168735HCID 22168735—

Reaction Conditions

Temperature200 °C

Reaction Steps

A mixture containing 1-(2-bromoethyl)-2-acetyl-1H-pyrrole (8.2 g), ethylene glycol (45 mL), 85% potassium hydroxide pellets (8.91 g) and 80% hydrazine hydrate (6.76 mL) was stirred at 200° C. for about 1.5 hr along with simultaneous distillation of volatile materials. The product obtained was extracted with ethyl acetate (2×100 mL). The ethyl acetate layer was washed with water (100 mL), dried over sodium sulfate, filtered and evaporated. The crude product obtained was purified by column chromatography (silica gel 100–200), using ethyl acetate:pet. ether (8:2) as an eluent to obtain 2.2 g of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07041837B2
Source datasetuspto-grants-2006_05
ORD IDord-8dcfcbfe887f4f5f95202359811a07d1
Source noteuspto-grants-2006_05