Pyridine → 2-Pyridyl Trifluoromethanesulfonate

HRID 2261006Notes

Reaction equation

HRID 2261006 reaction equation
[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[F:7][C:8]([F:21])([F:20])[S:9]([O:12]S(C(F)(F)F)(=O)=O)(=[O:11])=[O:10]>C(Cl)Cl>[O:12]([C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][N:1]=1)[S:9]([C:8]([F:21])([F:20])[F:7])(=[O:11])=[O:10]

Participants

4

Reactant 2

HCID 1049PyridineHCID 67749Trifluoromethanesulfonic anhydride

Product 1

HCID 39476262-Pyridyl TrifluoromethanesulfonateYield 43%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

In analogy to GP 2, reaction of 7.2 g Intermediate 1.6 (20.4 mmol, 1 eq.), 2.5 mL dry pyridine (30.6 mmol, 1.5 eq.), 5.14 ml trifluoromethanesulfonic acid anhydride (30.6 mmol, 1.5 eq.) in 320 mL DCM yielded 4.2 g 2-pyridyl triflate (8.65 mmol, 43% yield).

Sources & evidence

ORD record
ord-f202b49d35d643cea9072c287dd0206a
Source dataset
uspto-grants-2010_12
Patent number
US07846928B2

Reaction notes

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