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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 471563Generated: October 30, 2026

Chlorosulfamic acid → HCID 67401501, compound

https://huagongshe.com/reaction/471563

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorosulfamic acidHCID 24499—
Reactant2-amino-4,5-dihydronaphtho[1,2-b]thiophene-3-carbonitrileHCID 2818377—
SolventWaterHCID 962—
SolventDimethylacetamideHCID 31374—
ProductHCID 67401501HCID 67401501—

Reaction Steps

To a solution of 2-amino-4,5-dihydronaphtho[1,2-b]thiophene-3-carbonitrile (Example 93b) (250 mg, 1.11 mmol) in dimethylacetamide (5 mL) was added sulfamoyl chloride (385 mg, 3.33 mmol). The reaction mixture was stirred at room temperature under nitrogen for about 1 hr, then it was diluted with water and extracted with EtOAc, the organic layer was washed with brine, dried over Na2SO4, filtered and evaporated to give the crude product which was carried on for next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08633186B2
Source datasetuspto-grants-2014_01
ORD IDord-942d10afcd7a4b21b9f4a6c7b4d1f99f
Source noteuspto-grants-2014_01