Synthesis of allenylidene lithium and silver complexes, and subsequent transmetalation reactions.
Alpha, beta, gamma! Amino substituents in alpha and beta positions allow the isolation of free carbenes, but even in the gamma position, their strong pi-electron-donating properties permit the synthesis of allenylidene lithium adducts and silver complexes (see picture), which are ideal precursors for the preparation of various transition-metal-allenylidene complexes.
Asay
Matt
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UCR-CNRS Joint Research Chemistry Laboratory (UMI 2957), Department of Chemistry, University of California, Riverside, CA 92521-0403, USA.
Donnadieu
Bruno
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Schoeller
Wolfgang W
WW
Bertrand
Guy
G