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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2252964Generated: October 30, 2026

Potassium Hydroxide → HCID 22168735, compound

https://huagongshe.com/reaction/2252964

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 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 numberUS07323491B2
Source datasetuspto-grants-2008_01
ORD IDord-fa8286dff03b43348bf331f3a03b28fa
Source noteuspto-grants-2008_01