188485-37-2Relevant academic research and scientific papers
Living polymerization of α-olefins: Catalyst precursor deactivation via the unexpected cleavage of a B-C6F5 bond
Scollard, John D.,McConville, David H.,Rettig, Steven J.
, p. 1810 - 1812 (1997)
The titanium diamide complex [ArN(CH2)3-NAr]TiMe2 (1a; Ar = 2,6-iPr2C6H3) reacts with B(C6F5)3 in pentane to give an insoluble yellow-orange solid (2a). Complex 2a is a catalyst for the living polymerization of 1-hexene. Pentane suspensions of 2a slowly evolve methane over the course of several hours to give the new pentane-soluble derivative [ArN(CH2)3NAr]Ti[CH2B-(C6F 5)2](C6F5) (3a), which was structurally characterized. Addition of a B-C6F5 group across an intermediate Ti=CH2 unit is proposed. Compound 3a is inactive for the polymerization of α-olefins.
