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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 51692Generated: October 29, 2026

Methanol → [4-(8-Ethyl-2,2,4,4-tetramethyl-chroman-6-yl-ethynyl) phenyl]acetic acid

https://huagongshe.com/reaction/51692

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
Reactant[4-(8-Ethyl-2,2,4,4-tetramethyl-chroman-6-ylethynyl) phenyl]acetic acid methyl esterHCID 69548054—
SolventAcetonitrileHCID 6342—
Product[4-(8-Ethyl-2,2,4,4-tetramethyl-chroman-6-yl-ethynyl) phenyl]acetic acidHCID 10156384—

Reaction Steps

Following general procedure L and using [4-(8-ethyl-2,2,4,4-tetramethyl-chroman-6-ylethynyl) phenyl] acetic acid methyl ester (Compound 55, 0.035 g, 0.1 mmol), 5 mL of methanol and 1M sodium hydroxide solution (1 mL) followed by preparative reverse phase HPLC using 10% water in acetonitrile as the mobile phase, the title compound was obtained as a solid (0.11 g, 25%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06713647B2
Source datasetuspto-grants-2004_03
ORD IDord-d05b0070aae840669014636ace5b96f9
Source noteuspto-grants-2004_03