Synthesis of some halogenated tetraarylborates

✍ Scribed by Romana Anulewicz-Ostrowska; Tomasz Kliś; Dariusz Krajewski; Bartosz Lewandowski; Janusz Serwatowski

• Book ID: 104254419
• Publisher: Elsevier Science
• Year: 2003
• Tongue: French
• Weight: 202 KB
• Volume: 44
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(03)01881-1

✦ Synopsis

The reactions of 3,4-dichlorophenylmagnesium bromide and 3,5-dichlorophenylmagnesium bromide with B(OEt) 3 and NaBF 4 were studied The corresponding tetraarylborates [(3,4-Cl 2 C 6 H 3 ) 4 B]NH 4 and [(3,5-Cl 2 C 6 H 3 ) 4 B]Na were obtained and characterized. The significant influence of the substituents inductive effect on the reaction course was revealed. NaBF 4 was found to be a valuable boron reagent in the synthesis of tetraarylborates containing highly electronegative substituents. The molecular structure of [(3-CF 3 C 6 H 4 ) 4 B]NH 4 obtained from the reaction of 3-trifluoromethylbromobenzene with NaBF 4 and Mg was determined using X-ray analysis.