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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 36590Generated: October 30, 2026

Pyridine → HCID 19937319, compound

https://huagongshe.com/reaction/36590

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantTrifluoromethanesulfonic anhydrideHCID 67749—
ReactantHCID 19937311HCID 19937311—
SolventDichloromethaneHCID 6344—
ProductHCID 19937319HCID 19937319—

Reaction Conditions

Temperature0 °C

Reaction Steps

Triflic anhydride (1.1 ml, 6.6 mmol) was added to a cold (0° C.) solution of 2,2-difluoro-3-phthalimido-1-propanol (1.4 g, 6 mmol), pyridine (0.5 ml, 6.6 mmol) in anhydrous dichloromethane (30 ml). The mixture was stirred 1 h at 0° C. and, after usual work-up, the product was purified by flash chromatography on silica gel (ethyl acetate:hexane; 20:80) (1.7 g, 75%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05416076
Source datasetuspto-grants-1995_05
ORD IDord-3d9e7ea27dd04640abac68e38e2f296e
Source noteuspto-grants-1995_05