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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 383732Generated: October 30, 2026

Sulfanilamide → HCID 59807751, compound

https://huagongshe.com/reaction/383732

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfanilamideHCID 5333—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 86623338HCID 86623338—
SolventTetrahydrofuranHCID 8028—
ProductHCID 59807751HCID 5980775166%

Reaction Conditions

Temperature80 °C

Reaction Steps

Into an oven-dried 1 dram vial was added 2,5-dimethyl-1-[4-fluoro-2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carboxylic acid chloride (106 mg, 332 μmol), sulfanilamide (62.0 mg, 360 μmol), anhyd THF (2.0 mL) and diisopropylethylamine (50 μL). The vial was sealed and heated at 80° C. overnight. The resulting residue was purified by flash chromatography (SiO2), eluting with EtOAc/Hex (30:70 to 60:40) to afford the title compound as an off-white solid (99 mg, 66%); 1H NMR (CDCl3): δ 8.85 (s, 1H), 7.88 (d, J=7 Hz, 2H), 7.84 (d, J=7 Hz, 2H), 7.58 (dd, J=8, 3 Hz, 1H), 7.46 (m, 1H), 7.31 (dd, J=5, 8 Hz, 1H), 6.46 (s, 1H), 6.19 (s, 2H), 2.25 (s, 3H), 1.94 (s, 3H); MS (ESI) m/z 456 [M+H]+. D. In a manner similar to that described in Examples 1A-1C, but replacing 4-fluoro-2-(trifluoromethyl)aniline with 2-(trifluoromethyl)aniline, the following compound was prepared:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08367667B2
Source datasetuspto-grants-2013_02
ORD IDord-bb7f604f09e84246801365d34e643120
Source noteuspto-grants-2013_02