267877-92-9Relevant academic research and scientific papers
Stoichiometric homo-aldol coupling of acetone, cyclohexanone, and acetophenone by the [(η5-Cp(R))Co] (R = Me5, 1,2,4-tri-tert-butyl) moiety
Schneider, Joerg J.,Wolf, Dirk,Blaeser, Dieter,Boese, Roland
, p. 713 - 718 (2000)
Acetone, cyclohexanone, and acetophenone react with the toluene-bridged triple-decker complexes [{(η5-Cp(R))Co}2-μ-(η4:η4-toluene)] (R = Me5 3; 1,2,4-tri-tert-butyl 4) by toluene substitution and homo-aldol coupling of two ketone molecules to form the first oxadiene cobalt complexes. These reactions may involve a C(sp3)-H activation step of the ketones by 14 e- [(η5-Cp(R))Co] fragments generated from the triple-decker complexes 3 and 4. If no acidic protons are present in the position α to the carbonyl carbon position in the ketone, no C(sp3)-H activation occurs. In agreement with this, benzophenone does not react with complex 3.
