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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2046836Generated: October 26, 2026

Hydrochloric Acid → 3-Amino-6-(2,6-difluorophenyl)picolinic acid

https://huagongshe.com/reaction/2046836

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium HydroxideHCID 3939—
ReactantMethyl 3-amino-6-(2,6-difluorophenyl)picolinateHCID 59226548—
SolventTetrahydrofuranHCID 8028—
Product3-Amino-6-(2,6-difluorophenyl)picolinic acidHCID 5922642890%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of methyl 3-amino-6-(2,6-difluorophenyl)picolinate (1.0 equiv) in THF (0.5 M), was added 1M LiOH (4.0 equiv). After stirring for 4 hours at 60° C., 1 N HCl (4.0 equiv.) was added and the THF was removed in vacuo. The resulting solid was filtered and rinsed with cold H2O (3×20 mL) to yield 3-amino-6-(2,6-difluorophenyl)picolinic acid (90%). LCMS (m/z): 251.1 (MH+); LC Rt=2.1 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08592455B2
Source datasetuspto-grants-2013_11
ORD IDord-bdc122328c004de2822e7ec5bf90d93b
Source noteuspto-grants-2013_11