Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 554260Generated: November 1, 2026

Benzenesulfonyl chloride → Methyl 5-bromo-4-ethyl-1-(phenylsulfonyl)-1H-pyrrole-3-carboxylate

https://huagongshe.com/reaction/554260

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenesulfonyl chlorideHCID 7369—
ReactantSodium hydrideHCID 24758—
ReactantMethyl 5-bromo-4-ethyl-1H-pyrrole-3-carboxylateHCID 66924658—
ProductMethyl 5-bromo-4-ethyl-1-(phenylsulfonyl)-1H-pyrrole-3-carboxylateHCID 6692492291%

Reaction Steps

Using sodium hydride (60% in oil, 393 mg), methyl 5-bromo-4-ethyl-1H-pyrrole-3-carboxylate (2.00 g) and benzenesulfonyl chloride (1.25 mL), a procedure as in Reference Example 41 was performed to give the title compound as white crystals (yield 2.93 g, 91%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08048909B2
Source datasetuspto-grants-2011_11
ORD IDord-659c2ec58333417cb9eaac496877ae60
Source noteuspto-grants-2011_11