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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 704479Generated: October 29, 2026

Toluene → Flumiclorac-pentyl

https://huagongshe.com/reaction/704479

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
Reactant3,4,5,6-Tetrahydrophthalic anhydrideHCID 12475—
Reactant4-Chloro-2-fluoro-5-(pentyloxycarbonylmethyloxy)anilineHCID 14617850—
Catalystp-Toluenesulfonic acidHCID 6101—
SolventWaterHCID 962—
ProductFlumiclorac-pentylHCID 44304888.9%

Reaction Steps

A mixture of the compound (II) (12.0 g), 3,4,5,6-tetrahydrophthalic anhydride (7.56 g), p-toluenesulfonic acid (0.4 g) and toluene (24 g) was refluxed for 10 hours, during which water was azeotropically removed. The reaction mixture was treated in the same manner as in Example 4 to give the compound (I) (15.6 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04987247
Source datasetuspto-grants-1991_01
ORD IDord-7851570c2d754afc87f0e32909610288
Source noteuspto-grants-1991_01