Direct Observation of the Conversion of a Palladium 5-Hexenyl Chelate Complex to a Palladium Cyclopentylmethyl Complex

2001-11-06T00:00:00Z (GMT) by Nicholas S. Perch Ross A. Widenhoefer
Warming a solution of {(phen)Pd[η12-CH(CH2SiEt3)CH2C(CO2Me)2CH2CHCH2]}+[BAr4]- (4) at −41 °C led to first-order decay (k = (4.7 ± 0.3) × 10-4 M s-1, ΔG = 17.1 ± 0.1 kcal mol-1) with formation of the palladium cyclopentylmethyl complex (5) in 96 ± 10% yield (1H NMR).