96126-37-3Relevant academic research and scientific papers
THE THERMOLYSIS OF DI-p-TOLYLTITANOCENE AND DI-m-TOLYLTITANOCENE WITH ACETYLENES: FURTHER EVIDENCE FOR ARYNE- OR o-PHENYLENE-TITANOCENE INTERMEDIATES
Rausch, Marvin D.,Mintz, Eric A.
, p. 65 - 72 (2007/10/02)
The thermolyses of di-p-tolyltitanocene and di-m-tolyltitanocene with diphenylacetylene, 2-butyne and hexafluoro-2-butyne have been investigated.Di-p-tolyltitanocene reacts with each acetylene to produce a mixture of two isomeric benzotitanoles in approximately equal amounts, whereas di-m-tolyltitanocene and each acetylene afford three isomeric benzotitanoles in an approximate 1 : 1 : 2 ratio, as evidenced by proton NMR analysis of the reaction products.These results lend further evidence for the formation of aryne- or o-phenylene-titanocene intermediates in the thermolyses of diaryltitanocenes.Steric effects play an important role in the addition of acetylene to these intermediates.
