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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1844739Generated: October 29, 2026

Water → 4-Bromo-5-(cyclohexylmethyl)-1-methyl-1H-pyrrole-2-sulfonamide

https://huagongshe.com/reaction/1844739

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantN-bromobutanimideHCID 67184—
Reactant5-(Cyclohexylmethyl)-1-methyl-1H-pyrrole-2-sulfonamideHCID 70874051—
SolventTetrahydrofuranHCID 8028—
Product4-Bromo-5-(cyclohexylmethyl)-1-methyl-1H-pyrrole-2-sulfonamideHCID 86719138103.5%

Reaction Conditions

Temperature-78 °C

Reaction Steps

To a solution of NBS (68.7 mg, 386 μmol) was added a solution of compound 25e (104 mg, 410 μmol) in THF at −78° C. and stirred for 2 h at −78° C. Water (30 mL) was added and the reaction mixture was extracted with EA (150 mL). The organic layer was washed with brine, dried over Na2SO4, concentrated and purified by CC (hexane/EA=3/1) to give compound 25f (134 mg, 61%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08946446B2
Source datasetuspto-grants-2015_02
ORD IDord-5e4988c72fec42c39b0f3099d8f825d1
Source noteuspto-grants-2015_02