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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1295919Generated: October 30, 2026

Dichloromethane → Trifluoromethanesulfonic anhydride

https://huagongshe.com/reaction/1295919

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantTriethylamineHCID 8471—
ReactantTrifluoromethanesulfonateHCID 2758875—
SolventPyridineHCID 1049—
ProductTrifluoromethanesulfonic anhydrideHCID 67749—

Reaction Steps

Step 2 is a step of conversion of hydroxyl to a trifluoromethanesulfonate (triflate). Compound (B3-c) may be obtained by reaction with trifluoromethanesulfonic anhydride in a solvent such as dichloromethane in the presence of a base such as triethylamine or pyridine, or by reaction with compound (B3-e) in the presence of triethylamine or dimethylaminopyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07244730B2
Source datasetuspto-grants-2007_07
ORD IDord-0762649928824e08abb6335fd6a15e49
Source noteuspto-grants-2007_07