423343

p-Tolyl [2-(trimethylsilyl)ethynyl] sulfone

98%

• Synonym(s): 1-(p-Toluenesulfonyl)-2-(trimethylsilyl)acetylene, 2-(Trimethylsilyl)ethynyl p-tolyl sulfone
• Linear Formula: (CH₃)₃SiC≡CSO₂C₆H₄CH₃
• CAS Number: 34452-56-7
• Molecular Weight: 252.40
• Beilstein/REAXYS Number: 2650368
• MDL number: MFCD00192508
• UNSPSC Code: 12352100
• PubChem Substance ID: 24866490
• NACRES: NA.22

Properties

• assay: 98%
• mp: 80-83 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: Cc1ccc(cc1)S(=O)(=O)C#C[Si](C)(C)C
• InChI: 1S/C12H16O2SSi/c1-11-5-7-12(8-6-11)15(13,14)9-10-16(2,3)4/h5-8H,1-4H3
• InChI key: MMUNNGUGQXEUBR-UHFFFAOYSA-N

Description

General description

p-Tolyl [2-(trimethylsilyl)ethynyl] sulfone is an aryl trimethylsilylethynyl sulfone. It can be synthesized from bis(trimethylsilyl)acetylene.

Application

p-Tolyl [2-(trimethylsilyl)ethynyl] sulfone (1-tosyl-2-(trimethylsilyl)acetylene) may be used as a reactant in the synthesis of Cp(OC)₂M-C=CSiMe₃ (M = Fe, Ru) by reacting with [Cp(OC)₂M ]^-Na⁺ and as a reagent in the photochemical alkynylation of unreactive C (sp³)–H bonds.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H335
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves