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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 84703Generated: October 25, 2026

Benzenamine, 2-chloro-N-methyl- → n-(2-Chlorophenyl)-n,4,4-trimethyl-4h-thieno[3,2-c]chromene-2-carboxamide

https://huagongshe.com/reaction/84703

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenamine, 2-chloro-N-methyl-HCID 136736—
Reactant4,4-Dimethyl-4h-thieno[3,2-c]chromene-2-carbonyl chlorideHCID 57900461—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventPyridineHCID 1049—
SolventDichloromethaneHCID 6344—
Productn-(2-Chlorophenyl)-n,4,4-trimethyl-4h-thieno[3,2-c]chromene-2-carboxamideHCID 5790040031%

Reaction Steps

To a solution of 2-chloro-N-methylaniline (32.10 uL, 0.2750 mmol) in 1.2 M of Pyridine in methylene chloride (0.8333 mL) was added a pinch of DMAP, followed by the addition of 4,4-dimethyl-4H-thieno[3,2-c]chromene-2-carbonyl chloride (70.2 mg, 0.250 mmol). The reaction was stirred at room temperature under N2 with LC/MS monitor. The crude product was purified on silica to give 30 mg 141bp. Yield=31% of theoretical. MS: (ESI+)=385

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846762B2
Source datasetuspto-grants-2014_09
ORD IDord-55acad43fddc48a9a8b28dc4c8b7f419
Source noteuspto-grants-2014_09