Novel H2 activation by a tris[3,5-bis(trifluoromethyl)phenyl]borane frustrated Lewis pair

Friedel–Crafts‐Type Intermolecular C−H Silylation of Electron‐Rich Arenes Initiated by Base‐Metal Salts

“…[17] Such transmetalation could also come into play here and liberate tris[3,5-bis(trifluoromethyl)phenyl]borane, [18] yet another potential catalyst for the present S E Ar. [19] We analyzed the action of FeCl 2 on NaBAr -substituted base metal [17] or ab oron Lewis acid, cannot be formulated.…”

Frustrated Lewis Pair Chemistry: Development and Perspectives

“…[34] A variety of new boron Lewis acids were employed for H 2 activation and catalysis. For example, the O'Hare group used tris(2,2',2''-perfluorobiphenyl)borane [35] while Ashley et al [36] used tris [3,5-bis(trifluoromethyl)phenyl]borane in combination with tetramethylpiperidine for dihydrogen activation. Wang and co-workers [37] reported the related bis[(2,4,6-trifluoromethyl)phenyl]borane 18 which, in combination with the Lewis base DABCO, readily cleaves dihydrogen in what is probably a concerted reaction, to give the salt 19 (Scheme 8).…”

Cooperative H 2 Activation by Borane‐Derived Frustrated Lewis Pairs

“…Figure 9.8 Lewis acids A-L for FLPmediated H 2 activation (percentage in parentheses corresponds to the Lewis acidity with reference to B(C 6 F 5 ) 3 (100%, Gutmann-Beckett method)). A [27a]; B [29]; C [30]; D [30]; E [30]; F [30,31]; G [32]; H [32]; I [33]; J [34]; K [35]; and L [36].…”