3 years ago

[ASAP] Toluene and a-Olefins as Radical Scavengers: Direct NMR Evidence for Homolytic Chain Transfer Mechanism Leading to Benzyl and “Dormant” Titanium Allyl Complexes

[ASAP] Toluene and a-Olefins as Radical Scavengers: Direct NMR Evidence for Homolytic Chain Transfer Mechanism Leading to Benzyl and “Dormant” Titanium Allyl Complexes
Francesco Zaccaria, Cristiano Zuccaccia, Roberta Cipullo, Peter H. M. Budzelaar, Alceo Macchioni, Vincenzo Busico, Christian Ehm
Resting/dormant benzyl- and allyl-type Ti(IV) complexes formed under α-olefin polymerization conditions have been detected and characterized by NMR. Experimental and computational evidence supports a formation mechanism via reversible Ti–C bond homolysis rather than “classical” σ-bond metathesis.

Publisher URL: http://dx.doi.org/10.1021/acs.organomet.8b00755

DOI: 10.1021/acs.organomet.8b00755

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