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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 432930Generated: October 31, 2026

Methanol → N-[3,5-Dichloro-4-(3-cyclopropylmethanesulfonyl-4-hydroxy-phenoxy)-phenyl]-malonamic acid ethyl ester

https://huagongshe.com/reaction/432930

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantTriethylamineHCID 8471—
Reactant2-Ethylpropanedioyl dichlorideHCID 10920924—
Reactant4-(4-Amino-2,6-dichloro-phenoxy)-2-cyclopropylmethanesulfonyl-phenolHCID 69259987—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
ProductN-[3,5-Dichloro-4-(3-cyclopropylmethanesulfonyl-4-hydroxy-phenoxy)-phenyl]-malonamic acid ethyl esterHCID 69260451—

Reaction Steps

To a solution of 4-(4-amino-2,6-dichloro-phenoxy)-2-cyclopropylmethane-sulfonyl-phenol (43 mg, 0.11 mmol) in THF (2 mL) was added triethylamine (17 μL, 0.12 mmol) in THF (2 mL) was added triethylamine (17 μL, 0.12 mmol) and ethyl malonyl chloride (14 μL, 0.11 mmol). The resulting mixture was preparative TLC (2% MeOH in CH2Cl2) to give the title compound of Step F (42 mg). MS (APCl−) Calc.: 501.0, Found: 500.3 (M−1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06664291B2
Source datasetuspto-grants-2003_12
ORD IDord-883173b6f16740beaf5187152b5abe88
Source noteuspto-grants-2003_12