Cleavage of Palladium Metallacycles by Acids: A Probe for the Study of the Cyclometalation Reaction

Abstract

Useful mechanistic information about the cyclometalation reaction may be obtained by studying the reverse reaction, namely, the protonation of metallacycle 1 by acids of different coordinating anions (see scheme). Ar=3,5-(F3C)2C6H3; Tf=F3CSO2.