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Key Documents

804401

Sigma-Aldrich

PyFluor

Synonym(s):

2-Pyridinesulfonyl Fluoride

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About This Item

Empirical Formula (Hill Notation):
C5H4FNO2S
CAS Number:
Molecular Weight:
161.15
MDL number:
UNSPSC Code:
12352101
PubChem Substance ID:
NACRES:
NA.22

Assay

95% (HPLC)

Quality Level

form

solid

mp

29-34 °C

storage temp.

2-8°C

SMILES string

O=S(C1=CC=CC=N1)(F)=O

InChI

1S/C5H4FNO2S/c6-10(8,9)5-3-1-2-4-7-5/h1-4H

InChI key

FCFXLXGZHDHJLB-UHFFFAOYSA-N

Application

2-pyridinesulfonyl fluoride can be used for the deoxyfluorination of primary and secondary alcohols in combination with an amidine or guanidine base. In comparison with other common deoxyfluorination reagents, for example, DAST exhibits less elimination side products in direct comparison on certain substrates.

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Articles

The prevalence of organofluorine compounds in industry and drug design necessitates the ability to introduce C–F bonds to molecules.

Related Content

Research in the Doyle group focuses on two areas: nucleophilic fluorination and nickel catalysis. The Doyle group has developed several reagents that advance these research areas. In fluorination, 2-pyridinesulfonyl fluoride (PyFluor) can be used for the mild deoxyfluorination of primary and secondary alcohols, a procedure which is normally accomplished by the sensitive reagent DAST. In nickel catalysis, the Doyle group has developed a modular, air-stable nickel precatalyst, [(TMEDA)Ni(o-tolyl)Cl], which has broad utility for a wide variety of reactions. This precatalyst can be used in place of Ni(cod)2, NiCl2, as well as other reported precatalysts. Doyle has also reported electron-deficient olefin ligands as a new class of ligand for accelerated reductive elimination. In particular, the sultam-derived ligand Fro-DO has been found to be critical for high yields in the cross-coupling of tertiary aziridines to form quaternary centers.

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