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Merck
모든 사진(1)

주요 문서

906190

Sigma-Aldrich

1,2-Dibromoethane-1-sulfonyl fluoride

동의어(들):

DESF, SuFEx hub, SuFEx-able plugin

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About This Item

실험식(Hill 표기법):
C2H3Br2FO2S
CAS Number:
Molecular Weight:
269.92
MDL number:
UNSPSC 코드:
12352101
NACRES:
NA.22

양식

liquid

반응 적합성

reaction type: click chemistry

SMILES string

F[S](=O)(=O)C(Br)CBr

InChI key

NIJDNCLEFCJVRL-UHFFFAOYSA-N

애플리케이션

1,2-Dibromoethane-1-sulfonyl fluoride (DESF) is a bench-stable precursor to 1-bromoethene-1-sulfonyl fluoride (BESF), a new and robust connective hub for the Sulfur (VI) fluoride exchange (SuFEx) click reaction. BESF offers similar routes as ethenesulfonyl fluoride (ESF, cat# 746959) but with additional reactivity due to the embedded bromo group.

Treatment of DESF with triethylamine generates BESF in situ, which has been used to synthesize diverse and unprecented sulfonyl fluorides in good-to-excellent yields. As the resulting molecules possess sulfonyl fluoride handles, further SuFEx reactions are also possible. DESF adds another useful tool for conjugation strategies in chemical biology and organic and polymer synthesis.

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픽토그램

Exclamation mark

신호어

Warning

유해 및 위험 성명서

예방조치 성명서

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


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문서 라이브러리 방문

Jing Leng et al.
Chemical communications (Cambridge, England), 54(35), 4477-4480 (2018-04-17)
A new fluorosulfonylation reagent 1-bromoethene-1-sulfonyl fluoride was developed (1-Br-ESF). This unique reagent possesses three addressable handles (vinyl, bromide, and sulfonyl fluoride) and has great potential to function as a tris-electrophile and as a sulfur(vi) fluoride exchange (SuFEx) clickable material to
Christopher J Smedley et al.
Chemical communications (Cambridge, England), 54(47), 6020-6023 (2018-05-26)
We demonstrate 1,2-dibromoethane-1-sulfonyl fluoride (DESF) as a bench-stable and readily accessible precursor to the robust SuFEx connector, 1-bromoethene-1-sulfonyl fluoride (BESF). The in situ generation of BESF from DESF opens up several new reaction profiles, including application in the syntheses of
Joice Thomas et al.
Organic letters, 20(13), 3749-3752 (2018-06-16)
A regioselective metal-free preparation of 4-fluorosulfonyl 1,2,3-triazoles from organic azides and a hitherto underexplored bromovinylsulfonyl fluoride building block is described. This reaction is very general and was extended to the synthesis of various sulfonates, sulfonamides, and sulfonic acid derivatives of

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