1252594-28-7

Basic information

• Product Name: 2,2,6,6-tetramethylpiperidinium triflate
• CAS NO: 1252594-28-7
• Molecular Weight: 291.335
• Mol File: 1252594-28-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,2,6,6-tetramethylpiperidinium triflate(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2,6,6-tetramethylpiperidinium triflate(1252594-28-7)
• EPA Substance Registry System: 2,2,6,6-tetramethylpiperidinium triflate(1252594-28-7)

Safety Data

• Hazardous Substances Data: 1252594-28-7(Hazardous Substances Data)

Upstream product

• 768-66-1 2,2,6,6-tetramethyl-piperidine 
• 124-38-9 carbon dioxide 
• 844504-52-5 tris(pentafluorophenyl)silyl triflate 
• 27607-80-3 Diphenylsilicium-bis(trifluormethansulfonat) 
• 27607-76-7 triphenylsilyl trifluoromethanesulfonate 

Relevant articles and documents

Activation of Carbon Dioxide by Silyl Triflate-Based Frustrated Lewis Pairs

Silyl triflates of the form R4-nSi(OTf)n (n=1, 2; OTf=OSO3CF3) are shown to activate carbon dioxide when paired with bulky alkyl-substituted Group15 bases. Combinations of silyl triflates and 2,2,6,6-tetramethylpiperidine react with CO2 to afford silyl carbamates via a frustrated Lewis pair-type mechanism. With trialkylphosphines, the silyl triflates R3Si(OTf) reversibly bind CO2 affording [R′3P(CO2)SiR3][OTf] whereas when Ph2Si(OTf)2 is used one or two molecules of CO2 can be sequestered. The latter bis-CO2 product is favoured at low temperatures and by excess phosphine.