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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 26905Generated: October 27, 2026

Phosphoric Acid → 3-(2',4'-Difluoro-4-biphenylyl)butyric acid ethyl ester

https://huagongshe.com/reaction/26905

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphoric AcidHCID 1004—
ReactantPotassium IodideHCID 4875—
Reactant3-(2',4'-Difluoro-4-biphenylyl)-3-hydroxybutyric acid ethyl esterHCID 53834251—
Product3-(2',4'-Difluoro-4-biphenylyl)butyric acid ethyl esterHCID 54340187—

Reaction Steps

A mixture of 32 g. of 3-(2',4'-difluoro-4-biphenylyl)-3-hydroxybutyric acid ethyl ester, 8.7 g. of potassium iodide, 5.2 g. of red phosphorus and 45 ml. of 85% phosphoric acid is stirred and heated to 130° for 7 hours. It is worked up in the customary manner to give 3-(2',4'-difluoro-4-biphenylyl)butyric acid ethyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04151302
Source datasetuspto-grants-1979_04
ORD IDord-085bc1f8311845d093222f9e2ed74cd1
Source noteuspto-grants-1979_04