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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 259755Generated: October 29, 2026

Acetic Acid → HCID 22403109, compound

https://huagongshe.com/reaction/259755

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantFormaldehydeHCID 712—
ReactantPiperidineHCID 8082—
Reactant2-[5-(Ethanesulfonyl)-2-methoxyphenyl]-1H-pyrroleHCID 13900353—
SolventEthanolHCID 702—
ProductHCID 22403109HCID 22403109—

Reaction Steps

A solution of piperidine (0.027 g, 0.32 mmol) in dry ethanol (2 ml) at room temperature was treated with aqueous formaldehyde (40%; 0.030g, 0.34 mmol) and glacial acetic acid (0.027 g, 0.45 mmol). The mixture was stirred at room temperature for 30 mins then was added dropwise to a solution of 2-(5-ethylsulphonyl-2-methoxyphenyl)-1H-pyrrole (0.086 g, 0.32 mmol) in dry ethanol (1 ml). The reaction mixture was stirred at room temperature for 18 hours then evaporated in vacuo. Chromatography on alumina (Brockmann grade 1) with ethyl acetate as eluant gave the title compound (E2)as a waxy solid after trituration with pentane (0.082 g, 70%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05523299
Source datasetuspto-grants-1996_06
ORD IDord-58162e5a4c4f4aa6b2cfe3cdbe0c7fc8
Source noteuspto-grants-1996_06