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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1193931Generated: November 2, 2026

Sulfuric Acid → 1-(4-chloro-2-fluoro-5-hydroxyphenyl)-5-fluoro-2-methoxy-4-trifluoromethyl-6(1H)-pyrimidinone

https://huagongshe.com/reaction/1193931

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant1-(4-chloro-2-fluoro-5-isopropoxyphenyl)-5-fluoro-2-methoxy-4-trifluoromethyl-6(1H)-pyrimidinoneHCID 21270751—
Product1-(4-chloro-2-fluoro-5-hydroxyphenyl)-5-fluoro-2-methoxy-4-trifluoromethyl-6(1H)-pyrimidinoneHCID 21270741—

Reaction Steps

using 1-(4-chloro-2-fluoro-5-isopropoxyphenyl)-5-fluoro-2-methoxy-4-trifluoromethyl-6(1H)-pyrimidinone with concentrated sulphuric acid during 2 minutes at 0° C. there is obtained 1-(4-chloro-2-fluoro-5-hydroxyphenyl)-5-fluoro-2-methoxy-4-trifluoromethyl-6(1H)-pyrimidinone, 1H14 NMR (CDCl3, 400 MHz): 7.30 ppm (d,1H), 6.87 ppm (d,1H), 4.00 ppm (s,3H);

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04812164
Source datasetuspto-grants-1989_03
ORD IDord-a55fa309d55a4da9b72fe686ec990332
Source noteuspto-grants-1989_03