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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1874964Generated: November 2, 2026

Ethanolamine → Methyl 3-chloro-5-{[(2-hydroxyethyl)amino]carbonyl}-1H-pyrrole-2-carboxylate

https://huagongshe.com/reaction/1874964

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
ReactantMethyl 3-chloro-5-(chlorocarbonyl)-1H-pyrrole-2-carboxylateHCID 86644903—
SolventTetrahydrofuranHCID 8028—
ProductMethyl 3-chloro-5-{[(2-hydroxyethyl)amino]carbonyl}-1H-pyrrole-2-carboxylateHCID 6848723257.3%

Reaction Steps

Ethanolamine (0.175 mL, 2.90 mmol) was added to a solution of methyl 3-chloro-5-(chlorocarbonyl)-1H-pyrrole-2-carboxylate (0.150 g, 0.580 mmol) in THF and the resulting solution stirred until no starting material was evident by TLC. Purification was accomplished by silica gel column chromatography (30-100% EtOAc/hexanes) to afford the title compound (0.082 g, 57%) as a white solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 12.37 (br. s., 1H), 8.42 (t, 1H), 6.80 (s, 1H), 4.75 (t, 1H), 3.78 (s, 3H), 3.46 (q, 2H), 3.27 (q, 2H). LCMS: m/z 245.4 (M−1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08304419B2
Source datasetuspto-grants-2012_11
ORD IDord-20e73671c981424ea5001ff02cbebfd3
Source noteuspto-grants-2012_11