259764

p-Toluolsulfonsäure-anhydrid

97%

• Synonym(e): (4-Methylphenyl)sulfonyl 4-methylbenzenesulfonate, 4-Methylbenzenesulfonic acid anhydride, 4-Methylbenzenesulfonic anhydride, 4-Methylphenylsulfonic anhydride, 4-Toluenesulfonic acid anhydride, Toluene-4-sulfonic acid ahnydride, p-Toluenesulfonic acid anhydride, p-Toluenesulfonyl anhydride, p-Tolylsulfonyl 4-methylbenzenesulfonate
• Lineare Formel: (CH₃C₆H₄SO₂)₂O
• CAS-Nummer: 4124-41-8
• Molekulargewicht: 326.39
• Beilstein: 2223702
• EG-Nummer: 223-926-9
• MDL-Nummer: MFCD00008548
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24855433
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 200
• Assay: 97%
• Form: solid
• mp (Schmelzpunkt): 121-127 °C (lit.)
• Funktionelle Gruppe: tosylate
• SMILES String: Cc1ccc(cc1)S(=O)(=O)OS(=O)(=O)c2ccc(C)cc2
• InChI: 1S/C14H14O5S2/c1-11-3-7-13(8-4-11)20(15,16)19-21(17,18)14-9-5-12(2)6-10-14/h3-10H,1-2H3
• InChIKey: PDVFSPNIEOYOQL-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

p-Toluenesulfonic anhydride acts as electrophilic species and activates 2-deoxy-sugar hemiacetals in situ, which reacts stereoselectively with nucleophilic acceptors to afford β-anomers.

Anwendung

p-Toluenesulfonic anhydride has been employed as reagent in palladium-catalyzed allylic alkenylation of allylic alcohols with n-butyl acrylate.

Sicherheitshinweise

• Piktogramme: GHS05
• Signalwort: Danger
• H-Sätze: H314
• P-Sätze: P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Gefahreneinstufungen: Eye Dam. 1 - Skin Corr. 1B
• Lagerklassenschlüssel: 8A - Combustible corrosive hazardous materials
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges