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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 234522Generated: October 25, 2026

2-Methoxy-4-nitrobenzenesulfonyl chloride → 3-Amino-3-(2-chlorophenyl)-5-ethoxy-1,3-dihydro-1-(2-methoxy-4-nitrobenzenesulfonyl)indol-2-one

https://huagongshe.com/reaction/234522

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Methoxy-4-nitrobenzenesulfonyl chlorideHCID 309458—
Reactant3-Amino-3-(2-chlorophenyl)-5-ethoxy-1,3-dihydroindol-2-oneHCID 19076387—
Product3-Amino-3-(2-chlorophenyl)-5-ethoxy-1,3-dihydro-1-(2-methoxy-4-nitrobenzenesulfonyl)indol-2-oneHCID 19076411—

Reaction Steps

This compound is prepared according to the procedure described in EXAMPLE 16 from 3-amino-3-(2-chlorophenyl)-5-ethoxy-1,3-dihydroindol-2-one and 2-methoxy-4-nitrobenzenesulfonyl chloride. Crystallization from a DCM/iso ether mixture gives the expected product, which crystallizes with 0.25 mol of iso ether. M.p.=129°-132° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05594023
Source datasetuspto-grants-1997_01
ORD IDord-74faeb8c800f43248f65605ae7ef33e5
Source noteuspto-grants-1997_01