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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 73410Generated: October 25, 2026

5-Chlorothiophene-2-sulfonyl chloride → 5-Chloro-N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)thiophene-2-sulfonamide

https://huagongshe.com/reaction/73410

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Chlorothiophene-2-sulfonyl chlorideHCID 2733925—
Reactant5,6-difluoro-N1-(2-fluoro-4-iodophenyl)benzene-1,2-diamineHCID 59386306—
Product5-Chloro-N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)thiophene-2-sulfonamideHCID 59386365—

Reaction Steps

According to the general procedure B, 5,6-difluoro-N1-(2-fluoro-4-iodophenyl)benzene1,2-diamine was reacted with 5-chlorothiophene-2-sulfonyl chloride to obtain the title compound. 1H NMR (300 MHz, CDCl3): δ 7.38 (dd, J=1.5 & 10.2 Hz, 1H), 7.32 (ddd, J=2.1, 5.1 & 9.3 Hz, 1H), 7.25 (d, J=3.9 Hz, 1H), 7.10 (dd, J=9.0 & 18.6 Hz, 3H), 6.84 (d, 4.2 Hz, 1H), 5.86 (dt, J=1.8, 8.7 & 17.4 Hz, 1H), 5.49 (br s, D2O exchangeable, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08829052B2
Source datasetuspto-grants-2014_09
ORD IDord-16b680432fb74b5cba890ad2ced7c845
Source noteuspto-grants-2014_09