23022-40-4Relevant articles and documents
From Carbanions to Organometallic Compounds: Quantification of Metal Ion Effects on Nucleophilic Reactivities
Corral-Bautista, Francisco,Klier, Lydia,Knochel, Paul,Mayr, Herbert
supporting information, p. 12497 - 12500 (2015/10/12)
The influence of the metal on the nucleophilic reactivities of indenyl metal compounds was quantitatively determined by kinetic investigations of their reactions with benzhydrylium ions (Ar2CH+) and structurally related quinone methides. With the correlation equation logk2=sN(N+E), it can be derived that the ionic indenyl alkali compounds are 1018 to 1024 times more reactive (depending on the reference electrophile) than the corresponding indenyltrimethylsilane. Different worlds: Kinetic investigations with reference electrophiles show that a reaction with an electrophile, which would proceed within milliseconds with indenyl lithium, would require much more than the age of the universe with the corresponding organosilicon compound. Met=metal.