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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 652887Generated: October 30, 2026

Pyridinium chloride → 3-(2-Fluorophenyl)-6-hydroxy-7-methyl-1,2-benzisoxazole

https://huagongshe.com/reaction/652887

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium chlorideHCID 10176127—
Reactant3-(2-Fluorophenyl)-6-methoxy-7-methyl-1,2-benzisoxazoleHCID 13015728—
SolventWaterHCID 962—
Product3-(2-Fluorophenyl)-6-hydroxy-7-methyl-1,2-benzisoxazoleHCID 135589643—

Reaction Steps

3-(2-fluorophenyl)-6-methoxy-7-methyl-1,2-benzisoxazole (16.1 g) is heated at 200° C. for two hours with 64 g of pyridine hydrochloride. The melt is poured into H2O and extracted with ethyl acetate. After washing with 5% HCl the ethyl acetate is dried and evaporated to give 3-(2-fluorophenyl)-6-hydroxy-7-methyl-1,2-benzisoxazole, mp 216°-219° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04673746
Source datasetuspto-grants-1987_06
ORD IDord-abbf792b4e344edf8e86d2fdb4002887
Source noteuspto-grants-1987_06