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905763

Sigma-Aldrich

Dimethylsulfoxonium-4-(trifluoromethyl)benzoylmethylide

≥95%

Synonym(e):

2-(Dimethyl(oxo)-sulfaneylidene)-1-(4-(trifluoromethyl)phenyl)ethan-1-one

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About This Item

Empirische Formel (Hill-System):
C11H11F3O2S
CAS-Nummer:
2118974-83-5
Molekulargewicht:
264.26
UNSPSC-Code:
12352101

Assay

≥95%

Form

solid

Eignung der Reaktion

reaction type: C-C Bond Formation

mp (Schmelzpunkt)

158 °C

Lagertemp.

−20°C

SMILES String

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

Allgemeine Beschreibung

Sulfoxonium ylides are highly stable carbene precursors, serving as a safer alternative to diazo compounds as they that do not generate gases as byproducts. Sulfoxonium ylides have been shown to be effective in a wide array of transition metal catalyzed C-H functionalization and coupling reactions.

Sonstige Hinweise

For additional technical information see Ketosulfoxonium Ylides: Safe, Versatile Carbene Equivalents

Coupling of Sulfoxonium Ylides with Arynes: A Direct Synthesis of Prochiral Aryl Ketosulfoxonium Ylides and Its Application in the Preparation of α-Aryl Ketones

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Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

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Alexánder Garay Talero et al.
Organic letters, 20(22), 7206-7211 (2018-10-27)
A general, mild, and versatile synthesis of the challenging α-aryl-β-ketosulfoxonium ylides has been developed for the first time, substituting traditional methods starting from diazo compounds. The arylation of easily accessible β-ketosulfoxonium ylides using aryne chemistry allowed the preparation of a
James D Neuhaus et al.
Angewandte Chemie (International ed. in English), 57(49), 16215-16218 (2018-09-29)
A ruthenium-catalysed cross-olefination of diazo compounds and sulfoxonium ylides is presented. Our reaction design exploits the intrinsic difference in reactivity of diazo compounds and sulfoxonium ylides as both carbene precursors and nucleophiles, which results in a highly selective reaction.
Kim Søholm Halskov et al.
Organic letters, 20(8), 2464-2467 (2018-03-28)
Azolopyrimidines are efficiently prepared by direct imidoyl C-H bond activation. Annulations of N-azolo imines with sulfoxonium ylides and diazoketones under redox-neutral conditions and alkynes under oxidizing conditions provide products with various arrangements of nitrogen atoms and carbon substituents. We have
Shuying Ji et al.
Organic letters, 20(18), 5981-5984 (2018-09-13)
A Cp*Co(III)-catalyzed C-H bond functionalization of a range of arenes by employing sulfoxonium ylides as carbene precursors instead of diazo compounds and other carbene precursors has been established. This reaction is highly efficient without any additive, possesses high step and
Panjie Hu et al.
Organic letters, 20(8), 2160-2163 (2018-04-03)
Rh(III)-catalyzed cascade C-H activation of benzoylacetonitriles and annulation with sulfoxonium ylides was realized, leading to selective synthesis of naphthols, 2,3-dihydronaphtho[1,8- bc]pyrans, and naphtho[1,8- bc]pyrans. This step-economic reaction proceeded efficiently under mild and redox-neutral conditions via multiple C-H activations.
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Verwandter Inhalt

Ketosulfoxonium Ylides

Ketosulfoxonium ylides serve as versatile carbene equivalents for large-scale reactions, releasing dimethyl sulfoxide biproducts.

Ellman Group – Professor Product Portal

The Ellman group has participated in the development of a variety of C-H functionalization methods. An electron rich phosphine ligand has proven to be very useful for a variety of Rh(I)-catalyzed C-C bond forming reactions applicable to heterocycle synthesis as exemplified in the recent Science paper “Proton Donor Acidity Controls Selectivity in Nonaromatic Nitrogen Heterocycle Synthesis.” Another useful ligand developed for the highly functional group compatible direct arylation of nitrogen heterocycles is described in a 2008 J. Am. Chem. Soc. paper “Rh(I)-Catalyzed Arylation of Heterocycles via C-H Bond Activation: Expanded Scope through Mechanistic Insight.” The Ellman group also developed the chiral amine reagent tert-Butanesulfinamide, which is extensively used in academics and industry for the asymmetric synthesis of amines. A comprehensive survey of tert-Butanesulfinamide methods and applications up through 2009 is provided in the 2010 Chemical Reviews article, “Synthesis and Applications of tert-Butanesulfinamide.”

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