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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1925743Generated: November 3, 2026

Pyridine → HCID 8823202, compound

https://huagongshe.com/reaction/1925743

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantMethyl 3-amino-2-thiophenecarboxylateHCID 89652—
ReactantIndan-5-sulfonyl chlorideHCID 3142583—
SolventDichloromethaneHCID 6344—
ProductHCID 8823202HCID 882320246.8%

Reaction Steps

To a solution of 2,3-dihydro-1H-indene-5-sulfonyl chloride (0.5 g; 2.3 mmol) in dichloromethane (5 mL) at room temperature, methyl 3-aminothiophene-2-carboxylate (0.3 g; 1.9 mmol) was added followed by pyridine (0.32 g; 4.0 mmol) and then stirred at room temperature under a nitrogen atmosphere for 24 hours. The reaction mixture was concentrated under reduced pressure and then taken up in ethyl acetate (50 mL) and extracted with water. The aqueous layer separated and extracted with ethyl acetate (2×50 mL). The combined organic phases were successively washed with water and aqueous saturated sodium chloride, dried over magnesium sulfate, filtered and concentrated under reduced pressure. The resulting crude residue was recrystallized from acetonitrile to yield the title product as a white solid (0.3 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178699B2
Source datasetuspto-grants-2012_05
ORD IDord-2de22024a0c14691b97c47461c236f94
Source noteuspto-grants-2012_05