343321-17-5

Basic information

• Product Name: trimethylamine-pentafluoropphenylbis(trifluoromethyl)borane
• CAS NO: 343321-17-5
• Molecular Weight: 374.993
• Mol File: 343321-17-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: trimethylamine-pentafluoropphenylbis(trifluoromethyl)borane(CAS DataBase Reference)
• NIST Chemistry Reference: trimethylamine-pentafluoropphenylbis(trifluoromethyl)borane(343321-17-5)
• EPA Substance Registry System: trimethylamine-pentafluoropphenylbis(trifluoromethyl)borane(343321-17-5)

Safety Data

• Hazardous Substances Data: 343321-17-5(Hazardous Substances Data)

Upstream product

• 827-15-6 1,2,3,4,5-pentafluoro-6-iodobenzene 
• 105224-90-6 dimethylaminobis(trifluoromethyl)borane 
• 74-88-4 methyl iodide 

Downstream Products

• 343321-24-4 potassium fluoro(pentafluorophenyl)bis(trifluoromethyl)borate 

Relevant articles and documents

Fluoroborates by cleavage of trimethylamine-bis(trifluoromethyl)boranes with NEt3 x 3 HF. Structures of C6F5(CF3)2B · NMe3, K[C6H5CH2(CF3)2BF], and K[C6H5(CF3)2BF]

Trimethylamine-bis(trifluoromethyl)boranes R(CF3)2B · NMe3 (R = cis/tans-CF3CF=CF (1/2), HC≡C (3), H2C=CH (4), C2H5 (5), C6H5CH2 (6), C6F5 (7), C6H5 (8)) react with NEt3 x 3 HF depending on the nature of R at 155-200°C under replacement of the trimethylamine ligand to form the corresponding fluoro-bis(trifluoromethyl)-borates [R(CF3)2BF]- (1a/2a-8a). The structures of 7, K[C6H5CH2(CF3)2BF] (K-6a), and K[C6H5(CF3)2BF] (K-8a) have been investigated by single-crystal X-ray diffraction. In 7 the CF3 groups make short repulsive contacts with NMe3 and C6F5 entities - the B-CF3 bonds being unusually long. The B-F bond lengths of K-6a and K-8a (1.446(3) and 1.452(2) A?, respectively) are long for a fluoroborate. Wiley-VCH Verlag GmbH, 2001.