L'intermediaire de reaction un metallocyclobutane mono ou dissubstitue par un groupemethyl n'a pas de configurationpreferentielle pour le monosubstitue et preferrede prendre la configuration trans pour le dissubstitue
A Unique Pd4 Platform with CH3 and μ-CH2 Groups and Its CC Coupling Reaction with Simple Olefins
作者:Anna Sachse、Michael John、Franc Meyer
DOI:10.1002/anie.200904745
日期:2010.3.8
Ménage à quatre: The Pd4 complex 1 features both terminal CH3 and bridging CH2 groups, and it reacts with ethylene at room temperature to give mainly propene. NMR spectroscopic studies reveal several intermediates in the formation of 1 from Pd2 building blocks.