848185-73-9Relevant academic research and scientific papers
Rearrangements and stereomutations of metallacycles derived from allenes and imidozirconium complexes
Michael, Forrest E.,Duncan, Andrew P.,Sweeney, Zachary K.,Bergman, Robert G.
, p. 1752 - 1764 (2007/10/03)
The mechanisms of the rearrangements and Stereoinversion of azametallacyclobutenes generated via [2+2] cycloaddition of allenes and imidozirconium complexes have been studied. Metallacycles derived from allenes bearing β-hydrogen atoms racemize at room temperature by reversible β-hydride elimination, a process which is also responsible for their eventual conversion to monoazadiene complexes. Metallacycles derived from diarylallenes racemize by reversible thermal bond homolysis at 95°C; racemization of these metallacycles is also catalyzed by mild oxidants.
