1331770-02-5

Basic information

• Product Name: trimethylsilane adduct of trimethylsilylium tetrakis(pentafluorophenyl)borate
• Synonyms: trimethylsilane adduct of trimethylsilylium tetrakis(pentafluorophenyl)borate
• CAS NO: 1331770-02-5
• Molecular Weight: 826.431
• Mol File: 1331770-02-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: trimethylsilane adduct of trimethylsilylium tetrakis(pentafluorophenyl)borate(CAS DataBase Reference)
• NIST Chemistry Reference: trimethylsilane adduct of trimethylsilylium tetrakis(pentafluorophenyl)borate(1331770-02-5)
• EPA Substance Registry System: trimethylsilane adduct of trimethylsilylium tetrakis(pentafluorophenyl)borate(1331770-02-5)

Safety Data

• Hazardous Substances Data: 1331770-02-5(Hazardous Substances Data)

Upstream product

• 993-07-7 trimethylsilan 

Downstream Products

• 1402147-89-0 N,N-bis(trimethylsilyl)amino-N-(trimethylsilyl)nitrilium tetrakis(pentafluorophenyl)borate 
• 1402147-93-6 N,N-bis(trimethylsilyl)aminotrimethylsilylisonitrilium tetrakis(pentafluorophenyl)borate 
• 1012-72-2 1,4-di-tert-butylbenzene 
• 1195797-33-1 bis(trimethylsilyl)fluoronium tetrakis(pentafluorophenyl)borate 
• 1352221-34-1 4,5,6,7-tetrafluorobenzo[1,3]dithiol-2-ylidene tris(pentafluorophenyl)borane 
• 1109-15-5 tris(pentafluorophenyl)borate 

Relevant articles and documents

Synthesis of the first persilylated ammonium ion, [(Me3Si) 3NSi(H)Me2]+, by silylium-catalyzed methyl/hydrogen exchange reactions

This work describes the unexpected synthesis and characterization of the first persilylated ammonium ion, [(Me3Si)3NSi(H)Me 2]+, in the reaction of (Me3Si)3N with [Me3Si-H-SiMe3][B(C6F5) 4]. NMR and Raman studies revealed a transition-metal-free silylium ion catalyzed substituent redistribution process when [Me3Si-H- SiMe3]+ was used as the silylating reagent. These observations were affirmed in the reaction with [Et3Si-H-SiEt 3][B(C6F5)4]. A Lewis acid catalyzed scrambling process always occurs if an excess of silanes is present in the formation of silylium cations while employing the standard Bartlett-Schneider- Condon type reaction. Additionally, the thermodynamics of this process was accessed by DFT computations at the pbe1pbe/aug-cc-pVDZ level, indicating alkyl substituent exchange equilibria at the silane and preference of the formation of [(Me3Si)3NSi(H)Me2]+ over [(Me 3Si)4N]+.