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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 722709Generated: October 30, 2026

Triethylamine → HCID 11153031, compound

https://huagongshe.com/reaction/722709

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant2,2-Diphenylacetyl chlorideHCID 74637—
Reactant2-Amino-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carbonitrileHCID 737743—
SolventDichloromethaneHCID 6344—
ProductHCID 11153031HCID 1115303137.3%

Reaction Steps

To a stirred solution of 2-Amino-3-cyano-4,7-dihydro-5H-thieno[2,3-c]pyran (400 mg; 2.22 mmol) and triethylamine (0.93 mL; 6.66 mmol) in dry methylene chloride (10 mL) under nitrogen at room temperature was added diphenylacetyl chloride (768 mg; 3.33 mmol). After 72 h, the mixture was diluted with methylene chloride and washed with 1N HCl. The organic layer was dried over sodium sulfate, filtered and concentrated in vacuo. The crude product was triturated with cold diethyl ether and filtered to give 310 mg (37%) of N-(3-Cyano-4,7-dihydro-5H-thieno[2,3-c]pyran-2-yl)-2,2-diphenyl-acetamide as a white solid. ES-HRMS m/e calcd for C22H18N2O2S (M+H+) 375.1162, found 375.1165.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07138529B2
Source datasetuspto-grants-2006_11
ORD IDord-223d82f13a734d739cd19157f56bc5b0
Source noteuspto-grants-2006_11