Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1094874Generated: October 25, 2026

Ammonium → 4-chloro-1H-pyrrole-2-carboxamide

https://huagongshe.com/reaction/1094874

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniumHCID 223—
Reactant2,2,2-trichloro-1-(4-chloro-1H-pyrrol-2-yl)ethan-1-oneHCID 7130688—
SolventTetrahydrofuranHCID 8028—
Product4-chloro-1H-pyrrole-2-carboxamideHCID 5520757792%

Reaction Steps

A solution of 2,2,2-trichloro-1-(4-chloro-1H-Pyrrol-2-yl)ethanone (14.0 g, 56.7 mmol) in THF (100 mL) was bubbled with ammonium gas for 2 h at room temperature. TLC analysis indicated that there was complete conversion of starting material. The reaction mixture was concentrated in vacuo to yield 7.5 g of the above compound (51.88 mmol, yield 92%). 1H-NMR (Acetone-d6) δ 10.92 (br s, 1H), 7.21 (br s, 1H), 7.02 (s, 1H), 6.84 (s, 1H), 6.57 (br s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08133995B2
Source datasetuspto-grants-2012_03
ORD IDord-ea773c68d66d43b68f03ceb3da912e31
Source noteuspto-grants-2012_03