Once Cleaved C-c Bond Was Reformed: Reversible C-c Bond Cleavage Ofrndihydroindenyltitanium Complexes

摘要

Carbon-carbon bond cleavage of organic molecules has been a challenging target in organic chemistry. Rosenthal et al. have reported that la was converted into 2a by coupling of a Cp moiety and a diene moiety of la. Recently we have converted 2a into Et group migrated compound 3a by oxidation and proved that the carbon-carbon bond of the original Cp moiety was cleaved in 3a by ~(13)C labeled experiment as shown in eq 1.