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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2192633Generated: October 31, 2026

Methanol → HCID 59226580, compound

https://huagongshe.com/reaction/2192633

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantHCID 59226540HCID 59226540—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
SolventEthyl AcetateHCID 8857—
ProductHCID 59226580HCID 59226580—

Reaction Steps

To a solution of 5-fluoro-6-(1,4-dioxaspiro[4.5]dec-7-en-8-yl)picolinic acid (1.0 equiv.) in DCM (0.3 M) was added EDC-HCl (1.0 equiv.), DMAP (1.0 equiv.), and MeOH (10 equiv.). The reaction mixture was allowed to stir at room temperature for 5 days, then diluted with ethyl acetate, washed with water, brine, dried over magnesium sulfate, filtered and concentrated. The crude product was purified by silica gel column chromatography eluting with 25-50% ethyl acetate in hexanes to yield methyl 5-fluoro-6-(1,4-dioxaspiro[4.5]dec-7-en-8-yl)picolinate as the desired product in 35% yield. LC/MS=294.2 (M+H), Rt=0.79 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329732B2
Source datasetuspto-grants-2012_12
ORD IDord-fb1fc870bb1b4572ae93abb368cd8008
Source noteuspto-grants-2012_12