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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 427815Generated: October 25, 2026

Methanol → 4-(8-Cyclopropyl-2,2,4,4-tetramethyl-chroman-6-yl-ethvnyl)-benzoic acid

https://huagongshe.com/reaction/427815

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
Reactant4-(8-Cycloproply-2,2,4,4-tetramethyl-chroman-6-yl-ethynyl)-benzoic acid ethyl esterHCID 69548071—
SolventAcetonitrileHCID 6342—
Product4-(8-Cyclopropyl-2,2,4,4-tetramethyl-chroman-6-yl-ethvnyl)-benzoic acidHCID 9969656—

Reaction Steps

Following general procedure L and using 4-(8-cyclopropyl-2,2,4,4-tetramethyl-chroman-6-yl-ethynyl)-benzoic acid ethyl ester (Compound 33, 0.135 g, 0.34 mmol), 5 mL of methanol and 1M sodium hydroxide solution (2 mL) followed by preparative reverse phase HPLC using 10% water in acetonitrile as the mobile phase, the title compound was obtained as a solid (0.093 g, 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06313107B1
Source datasetuspto-grants-2001_11
ORD IDord-59090628ec0d4713b11e97b91fcb62a9
Source noteuspto-grants-2001_11