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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2180524Generated: November 2, 2026

Sodium Hydroxide → (2E,4E,6E)-6-Fluoro-7-(4-isopropyl-7-methoxy-2,2-dimethyl-2H-chromen-6-yl)-3-methyl-octa-2,4,6-trienoic acid

https://huagongshe.com/reaction/2180524

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactantethyl (2E,4E,6E)-6-fluoro-7-(4-isopropyl-7-methoxy-2,2-dimethyl-2H-chromen-6-yl)-3-methyl-octa-2,4,6-trienoateHCID 86759708—
SolventEthanolHCID 702—
SolventTetrahydrofuranHCID 8028—
Product(2E,4E,6E)-6-Fluoro-7-(4-isopropyl-7-methoxy-2,2-dimethyl-2H-chromen-6-yl)-3-methyl-octa-2,4,6-trienoic acidHCID 22490881—

Reaction Steps

Following General Procedure G, a solution of ethyl (2E,4E,6E)-6-fluoro-7-(4-isopropyl-7-methoxy-2,2-dimethyl-2H-chromen-6-yl)-3-methyl-octa-2,4,6-trienoate (Compound 108, 116 mg, 2.71 mmol) in ethanol and THF was hydrolyzed with NaOH to yield a yellow oil after purification by column chromatography (silica gel, 100% hexane to 5% to 50% ethyl acetate in hexanesethyl). The resulting oil was recrystallized from acetonitrile to produce the title compound as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06887896B1
Source datasetuspto-grants-2005_05
ORD IDord-a2de77370f3c49598edc7cf64392abb3
Source noteuspto-grants-2005_05