912292-09-2

Basic information

• Product Name: tetrabutylammonium bis(pentafluorophenyl)difluoroborate
• Synonyms: tetrabutylammonium bis(pentafluorophenyl)difluoroborate
• CAS NO: 912292-09-2
• Molecular Weight: 625.392
• Mol File: 912292-09-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: tetrabutylammonium bis(pentafluorophenyl)difluoroborate(CAS DataBase Reference)
• NIST Chemistry Reference: tetrabutylammonium bis(pentafluorophenyl)difluoroborate(912292-09-2)
• EPA Substance Registry System: tetrabutylammonium bis(pentafluorophenyl)difluoroborate(912292-09-2)

Safety Data

• Hazardous Substances Data: 912292-09-2(Hazardous Substances Data)

Upstream product

• 23868-34-0 tetrabutylammonium bifluoride 
• 7664-39-3 hydrogen fluoride 
• 1643-19-2 tetrabutylammomium bromide 
• 7789-23-3 potassium fluoride 

Relevant articles and documents

Polyfluoroorganoboron-oxygen compounds. 4 [1] lithium pentafluorophenyltrimethoxyborate, Li[C6F5B(OMe) 3], reactions with selected electrophiles and nucleophiles

Li[C6F5B(OMe)3] (1a) reacted with the electrophiles CD3C(O)CD3, CH3OD, CD 3CN, CH3CN, HOC2H4OH, Br 2, and I2 to give C6F5X (X = D, H, Br, I). The treatment of 1a with Me3SiCl or BF3 in CH 2Cl2 and CCl3F or pentene resulted in C 6F5B(OMe)2 or C6F5BF 2, respectively. The attempted metathesis of 1a with KF or [Bu 4N]Br in CH2Cl2 led to a mixture of M[(C 6F5)2B(OMe)2] (2b,c, main product) and M[C6F5B(OMe)3] (1b,c, minor product) (M = [Bu4N], K). Even in the presence of diethyl ether, THF, DME, or TMEDA salt 1a underwent dismutation to the diarylborate salt [Li(L) n][(C6F5)2B(OMe)2] (L = Et2O, THF, DME, TMEDA) and [Li(L)n][B(OMe)4]. In subsequent reactions with aqueous K[HF2] or [Bu 4N][HF2] M[(C6F5) 2B(OMe)2] (M = K, [Bu4N], [Li(L)n]) yielded K[(C6F5)2BF2] (4c) or [Bu4N][(C6F5)2BF2] (4b). The molecular structure of [Li·TMEDA][(C6F5) 2B(OMe)2] from single crystals showed significant cation-oxygen interactions.