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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 977095Generated: October 29, 2026

Diethyl bromomalonate → HCID 2744173, compound

https://huagongshe.com/reaction/977095

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl bromomalonateHCID 69637—
ReactantBenzenecarbothioamide, 3-chloro-HCID 737238—
SolventEthanolHCID 702—
ProductHCID 2744173HCID 274417372.6%

Reaction Conditions

Temperature60 °C

Reaction Steps

340 mg of 3-chlorothiobenzamide was dissolved in 10 ml of ethanol, 570 mg of diethyl bromomalonate was added to the solution, and the mixture was heated at 60° C. for 2 hours. After the reaction mixture was cooled, and the resulting crystal was collected by filtration and recrystallized from ethanol to give 408 mg of ethyl 2-(3-chlorophenyl)-4-hydroxy-5-thiazolecarboxylate. This product was hydrolyzed by a conventional process to give 306 mg of 2-(3-chlorophenyl)-4-hydroxy-5-thiazolecarboxylic acid (yield: 60%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05614520
Source datasetuspto-grants-1997_03
ORD IDord-ab3a171755d64f6aae66dd1b1de045e2
Source noteuspto-grants-1997_03