Inhibition of Reductive Elimination of Diorganopalladium Species by Formation of Tetraorganopalladates

Article abstract of DOI:10.1039/c39870000477

Reductive elimination of (^tBuC<*>C)2Pd(PPh3)2 to give ^tBuC<*>CC<*>CBu^t (4) is strongly inhibited by an excess of LiC<*>CBu^t through the formation of Li2Pd(C<*>CBu^t)4, which does not readily decompose to produce (4); these results provide, for the first time, a mechanistic interpretation of the hitherto puzzling inhibitory action of highly electropositive metals, such as Li, in Pd-promoted coupling reactions.

Full text of DOI:10.1039/c39870000477

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