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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1837460Generated: October 29, 2026

Methyl 4-amino-5-fluoro-3-chloro-6-(4-chlorophenyl)picolinate → HCID 22677347, compound

https://huagongshe.com/reaction/1837460

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl 4-amino-5-fluoro-3-chloro-6-(4-chlorophenyl)picolinateHCID 22677303—
CatalystTitanium tetra(methanolate)HCID 164767—
Solvent1-DecanolHCID 8174—
ProductHCID 22677347HCID 22677347173.4%

Reaction Steps

Methyl 4-amino-3-chloro-5-fluoro-6-(4-chlorophenyl)pyridine-2-carboxylate (0.545 g, 1.73 mmol) was suspended in decanol (20 mL) and titanium methoxide (0.029 g, 1.73 mmol) was added and the mixture heated under reflux for five hours. The reaction mixture was concentrated and the residue dissolved in ethyl acetate (100 mL) and washed with water (100 mL) and saturated sodium bicarbonate solution (100 mL). The organic phase was dried (MgSO4) and concentrated to give decyl 4-amino-3-chloro-5-fluoro-6-(4-chlorophenyl)pyridine-2-carboxylate (0.67 g, 1.5 mmol), mp 62-63° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06784137B2
Source datasetuspto-grants-2004_08
ORD IDord-c606d8ccca6442c8b6ccd43353504e9f
Source noteuspto-grants-2004_08