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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 333710Generated: October 31, 2026

Ethanol → HCID 59026635, compound

https://huagongshe.com/reaction/333710

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSodium HydroxideHCID 14798—
Reactant2-(2-Methoxybenzamido)-4-methylthiophene-3-carboxamideHCID 59026623—
SolventWaterHCID 962—
ProductHCID 59026635HCID 5902663561%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 2-(2-methoxybenzamido)-4-methylthiophene-3-carboxamide (0.84 g, 2.9 mmol), 6 N aqueous NaOH (4.8 mL), and EtOH (4.8 mL) was heated at 120° C. for 16 h. The reaction was cooled, diluted with water, and extracted with CH2Cl2. The combined extracts were washed with water, dried over Na2SO4, and concentrated under vacuum to give 2-(2-methoxyphenyl)-5-methylthieno[2,3-d]pyrimidin-4(3H)-one (0.48 g, 61% yield). LC/MS: m/z 273.1 (M+H)+ at 2.91 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883781B2
Source datasetuspto-grants-2014_11
ORD IDord-53353e9a638a47a1b2493809c23b1b61
Source noteuspto-grants-2014_11