75687-68-2

Upstream product

• 558-37-2 tert-butylethylene 
• 501-65-5 diphenyl acetylene 
• 90076-32-7 (η5-Cp)2TiCH2C(CH3)(C3H7)CH2 
• 108969-89-7 Cp₂TiCH_2.PMe₂Ph 

Downstream Products

• 558-37-2 tert-butylethylene 
• 112681-98-8 Cp₂(3-diphenylmethylene-titanaoxacyclobutane) 
• 187737-37-7 propene 
• 594-56-9 2,2,3-trimethylbut-1-ene 
• 4741-87-1 1,1-dimethylethylcyclopropane 
• 1271-19-8 bis(cyclopentadienyl)titanium dichloride 
• 92145-03-4 W(CO)2(C₅H₅)(CH₃C₄(C₆H₅)3)⁽¹⁺⁾*BF₄^(1-) = [W(CO)2(C₅H₅)(CH₃C₄(C₆H₅)3)][BF₄] 
• 92144-99-5 Mo(CO)2(C₅H₅)(CH₂C₄(C₆H₅)3) 

Relevant academic research and scientific papers

Synthesis and formal [4 + 2] cycloaddition reactions of vinylimido complexes of titanocene

Sources of the methylidene complex of titanocene, Cp2Ti=CH2, react with nitriles in the presence of donor ligands to afford vinylimido titanocene complexes. The vinylimido complexes react readily with ketones, nitriles, and imines, y

Mechanism of Titanocene Metallacyclobutane Cleavage and the Nature of the Reactive Intermediate

The mechanism of titanocene metallacyclobutane cleavage to give a titanocene methylidene is examined in detail.The reaction of titanocene metallacyclobutanes with acetylenes or olefins displays either first- or second-order kinetics depending upon the metallacycle, its reaction temperature, and the trapping reagent.The rate-determining step for cleavage is the formation of an olefin-titanocene methylidene complex.Evidence for this complex is presented by competition experiments and kinetic studies of titanocene methylidene phosphine adducts.Deuterium isotope effect studies on an α-d2 metallacycle reveal a preference for cleavage toward placing deuterium in the liberated olefin.The studies presented allow for the rational control of the catalytic activity of titanocene metallacyclobutanes.