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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1012173Generated: October 30, 2026

Sodium Hydroxide → HCID 59468598, compound

https://huagongshe.com/reaction/1012173

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantHCID 67313456HCID 67313456—
ReactantHCID 178425553HCID 178425553—
SolventCitric AcidHCID 311—
Solvent2-MethoxyethanolHCID 8019—
ProductHCID 59468598HCID 5946859853.9%

Reaction Conditions

Temperature100 °C

Reaction Steps

5-(3-dimethylamino-acryloyl)thiophene-2-carboxylic acid (200 mg, 0.888 mmol), N-m-tolylguanidine (71.1 mg, 1.77 mmol) and NaOH (264 mg, 1.77 mmol) were dissolved in 2-methoxyethanol (2 mL) and heated at 100° C. for 48 hours. After cooling, the reaction was diluted with 10% Aqueous citric acid solution and the solids were collected by filtration. The solids were washed with water and Et2O and dried to afford 5-(2-m-tolylamino-pyrimidin-4-yl)thiophene-2-carboxylic acid (149 mg, 53.8%) as a yellow solid. MS: m/z 312 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07977481B2
Source datasetuspto-grants-2011_07
ORD IDord-894fdff2a15d4e17878eb8adf3dd0f1c
Source noteuspto-grants-2011_07