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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 430038Generated: November 2, 2026

Pyridine → HCID 86757608, compound

https://huagongshe.com/reaction/430038

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantTolueneHCID 1140—
ReactantMethyl SalicylateHCID 4133—
ReactantTrifluoromethanesulfonic anhydrideHCID 67749—
SolventDichloromethaneHCID 6344—
ProductHCID 86757608HCID 86757608—

Reaction Conditions

Temperature-40 °C

Reaction Steps

Trifluoromethanesulfonic anhydride (28.4 mL, 169 mmol, 1.1 eq) was added to a solution of methyl salicylate (20 mL, 154 mmol) and pyridine (31 mL, 385 mmol, 2.5 eq) in dichloromethane (150 mL) maintained at an internal temperature about −40° C., under nitrogen. Once the addition was complete, the mixture was allowed to warm to ambient temperature and stirred for 16 hours. Toluene (150 mL) was added causing precipitation. The solids were removed by filtration and washed with toluene (20 mL). The organic solutions were combined and washed with 2 N HCl (aq) (2×50 mL), water (100 mL), saturated aqueous sodium carbonate solution (100 mL) and brine (100 mL). The organic layer was dried (MgSO4), filtered and concentrated under reduced pressure. Yield 41.93 g, 96%

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06320068B1
Source datasetuspto-grants-2001_11
ORD IDord-75d0ab024e5e4c2798641257eb7a8b34
Source noteuspto-grants-2001_11