Ns. Perch et Ra. Widenhoefer, Direct observation of the conversion of a palladium 5-hexenyl chelate complex to a palladium cyclopentylmethyl complex, ORGANOMETAL, 20(25), 2001, pp. 5251-5253
Warming a solution of {(phen)Pd[eta (1):eta (2)- CH(CH2SiEt3)CH2C(CO2Me)(2)
CH2CH=CH2]}(+)[BAr4](-) (4) at -41 degreesC led to first-order decay (k = (
4.7 +/- 0.3) X 10(-4) M s(-1), DeltaG(double dagger) = 17.1 +/- 0.1 kcal mo
l(-1)) with formation of the palladium cyclopentylmethyl complex {(phen)Pd-
[CH2CHCH2C(CO2Me)(2)CH2CHCH2SiEt3](NCAr)}(+)- [BAr4](-) (5) in 96 +/- 10% y
ield (H-1 NMR).