Pa. Chase et al., Reactions of bis(pentafluorophenyl)borane with titanocene dialkyls: Synthesis and structure of Cp2Ti [eta(2)-H2B(C6F5)(2)], ORGANOMETAL, 19(10), 2000, pp. 2040-2042
Clean reactions of Cp2TiR2 (R = CH3, CH2-Ph) with HB(C6F5)(2) occur when 2.
5 equiv of borane are used. The products of the reaction are the Ti(III) co
mplex Cp2Ti[eta(2)-H2B(C6F5)(2)], which has been fully characterized, RH, a
nd RB(C6F5)(2). A plausible explanation for these observations, which contr
ast with other reactions of boranes with group 4 metallocenes, is presented
.