142821-19-0

Basic information

• Product Name: Trifluoro-methanesulfonatetriphenyl-(1-trimethylsilanyloxy-propyl)-phosphonium;
• Synonyms: Trifluoro-methanesulfonatetriphenyl-(1-trimethylsilanyloxy-propyl)-phosphonium
• CAS NO: 142821-19-0
• Molecular Weight: 542.631
• Mol File: 142821-19-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Trifluoro-methanesulfonatetriphenyl-(1-trimethylsilanyloxy-propyl)-phosphonium;(CAS DataBase Reference)
• NIST Chemistry Reference: Trifluoro-methanesulfonatetriphenyl-(1-trimethylsilanyloxy-propyl)-phosphonium;(142821-19-0)
• EPA Substance Registry System: Trifluoro-methanesulfonatetriphenyl-(1-trimethylsilanyloxy-propyl)-phosphonium;(142821-19-0)

Safety Data

• Hazardous Substances Data: 142821-19-0(Hazardous Substances Data)

Upstream product

• 27607-77-8 trimethylsilyl trifluoromethanesulfonate 
• 123-38-6 propionaldehyde 
• 603-35-0 triphenylphosphine 

Downstream Products

• 142924-41-2 triphenyl (1-propenyloxy)phosphonium trifluoromethanesulfonate 

Relevant articles and documents

[1-(Trimethylsiloxy)alkyl]triphenylphosphonium salts: Syntheses and utilization, comparisons with analogous pyridinium salts

Three-component reactions with aldehydes, trimethylsilyl trifluoromethanesulfonate or iodide, and triphenylphosphine (TPP) yield the title compounds. The X-ray structure of the cationic part of a representative product, the (4-methylphenyl)[(trimethylsiloxy) methyl]TPP+, shows an interesting lengthening of the P+-C(α) bond compared with reported values for methyl(TPP)+ and benzyl(TPP)+ cations (C(α) represents the P-bonded carbon atom of the various alkyl groups). The behavior of the title compounds towards charged nucleophilic reagents and a powerful electrophile (trifluoromethanesulfonic anhydride) is similar to that of analogous pyridinium salts.