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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 593772Generated: October 30, 2026

Pyridine → HCID 86730428, compound

https://huagongshe.com/reaction/593772

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantMethanesulfonyl chlorideHCID 31297—
Reactant4-Aminobenzo[b]thiopheneHCID 298484—
SolventDichloromethaneHCID 6344—
ProductHCID 86730428HCID 8673042879%

Reaction Steps

To a stirred solution of benzo[b]thiophen-4-amine (1 g, 6.70 mmol) and pyridine (1.355 mL, 16.75 mmol) in CH2Cl2 (15 mL) was added dropwise methanesulfonyl chloride (0.574 mL, 7.37 mmol) at 0° C. under nitrogen atmosphere. The reaction mixture was then allowed to warm to room temperature while stirring overnight. The reaction mixture was washed with saturated sodium bicarbonate solution, water, brine and dried over sodium sulfate. Evaporation of the solvent furnished a crude residue, which was subjected to BIOTAGE® (100% methylene chloride) to give the title compound as a white solid (1.2 g, 79%). LC/MS: Example 105A @ 2.88 min (RT) (Condition H). MS (ES): m/z=226.0, [M+H]+. 1H NMR (400 MHz, MeOD) δ ppm 7.77 (1 hr, d, J=7.81 Hz), 7.59 (2 hr, d, J=1.26 Hz), 7.25-7.42 (2 hr, m), 2.94 (3 hr, s).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09242967B2
Source datasetuspto-grants-2016_01
ORD IDord-c482c36b17854b3c909d9125ef9e7422
Source noteuspto-grants-2016_01