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483869

Sigma-Aldrich

5-(Trifluormethyl)dibenzothiopheniumtetrafluorborat

97%

Synonym(e):

S-(Trifluoromethyl)dibenzothiophenium tetrafluoroborate, Umemoto reagent

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About This Item

Empirische Formel (Hill-System):
C13H8BF7S
CAS-Nummer:
131880-16-5
Molekulargewicht:
340.07
MDL-Nummer:
MFCD01073545
UNSPSC-Code:
12352101
PubChem Substanz-ID:
24871922
NACRES:
NA.22

Qualitätsniveau

100

Assay

97%

mp (Schmelzpunkt)

162-164 °C (lit.)

SMILES String

F[B-](F)(F)F.FC(F)(F)[S+]1c2ccccc2-c3ccccc13

InChI

1S/C13H8F3S.BF4/c14-13(15,16)17-11-7-3-1-5-9(11)10-6-2-4-8-12(10)17;2-1(3,4)5/h1-8H;/q+1;-1

InChIKey

VTVISWLINKWMQZ-UHFFFAOYSA-N

Verwandte Kategorien

Anwendung

  • Pd(II)-catalyzed trifluoromethylation
  • Copper-catalyzed trifluoromethylation of aryl boronic acids using a Collidine as a trifluoromethylating reagent
  • Pd-catalyzed electrophilic ortho-trifluoromethylation of arenes

Used in the stereoselective preparation of
  • Trifluoromethyl-substituted alkenes via copper-catalyzed trifluoromethylation of terminal alkenes
  • Trifluoromethyl-bearing quaternary carbon centers by Pd-catalyzed intramolecular decarboxylative allylation of α-trifluoromethyl β-keto esters

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)

Analysenzertifikate (COA)

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Difluoromethyl triflate 95%

Sigma-Aldrich

792764

Difluoromethyl triflate

Jun Xu et al.
Chemical communications (Cambridge, England), 47(14), 4300-4302 (2011-03-08)
A copper-catalyzed process for trifluoromethylation of aryl, heteroaryl, and vinyl boronic acids has been developed. The reaction is conducted under mild conditions and shows tolerance to moisture and a variety of functional groups.
Construction of Trifluoromethyl-Bearing Quaternary Carbon Centers by Intramolecular Decarboxylative Allylation of α-Trifluoromethyl β-Keto Esters
Shibata, N.; et al.
Advanced Synthesis & Catalysis, 353, 2037-2041 (2011)
Xisheng Wang et al.
Journal of the American Chemical Society, 132(11), 3648-3649 (2010-02-27)
A Pd(II)-catalyzed C-H activation/trifluoromethylation of arenes with an electrophilic trifluoromethylation reagent using diverse heterocycle directing groups is reported. The presence of trifluoroacetic acid is crucial for this catalytic reaction.
Jun Xu et al.
Journal of the American Chemical Society, 133(39), 15300-15303 (2011-09-15)
An unprecedented type of reaction for Cu-catalyzed trifluoromethylation of terminal alkenes is reported. This reaction represents a rare instance of catalytic trifluoromethylation through C(sp(3))-H activation. It also provides a mechanistically unique example of Cu-catalyzed allylic C-H activation/functionalization. Both experimental and
Xing-Guo Zhang et al.
Journal of the American Chemical Society, 134(29), 11948-11951 (2012-07-12)
A Pd(II)-catalyzed trifluoromethylation of ortho C-H bonds with an array of N-arylbenzamides derived from benzoic acids is reported. N-Methylformamide has been identified as a crucial promoter of C-CF(3) bond formation from the Pd center. X-ray characterization of the C-H insertion

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