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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1594067Generated: October 31, 2026

Ethyl bromopyruvate → HCID 136343490, compound

https://huagongshe.com/reaction/1594067

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl bromopyruvateHCID 66144—
Reactant1H-Imidazole-2-carbothioamideHCID 18521648—
ProductHCID 136343490HCID 13634349057.1%

Reaction Conditions

Temperature75 °C

Reaction Steps

A mixture of 1H-Imidazole-2-carbothioic acid amide (200 mg, 1.57 mmol) and Ethyl bromopyruvate (340 mg, 1.57 mmol) is heated at 75° C. for about 5 hours. After the volatiles are evaporated in vacuo, the residue is partitioned between Ethyl acetate (40 mL) and aqueous NaHCO3 (10 ML). The organic layer is separated, washed with water, dried and concentrated. The residue is purified on a silica gel column with 3% MeOH in CH2Cl2 as eluent to give 200 mg of the titled compound. 1H NMR (CDCl3): δ 8.15 (s, 1H), 7.20 (br, 1H), 7.10 (br, 1H), 4.33 (q, 2H), 1.23 (t, 3H). LRMS calcd 223, found 224 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07300945B2
Source datasetuspto-grants-2007_11
ORD IDord-97aaafc38b0e4a549f1249aed19433fc
Source noteuspto-grants-2007_11