23022-40-4Relevant academic research and scientific papers
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.
Fluxional behavior of group IV trimethylindenyl compounds
Rakita,Davison
, p. 1164 - 1167 (2008/10/08)
The indenyltrimethyl compounds of silicon, germanium, and tin have been investigated by variable-temperature proton magnetic resonance spectroscopy and shown to be fluxional molecules. For (CH3)3SnC9H7 the complete range from limiting high- to limiting low-temperature behavior was observed. The presence of tin to ring hydrogen coupling confirms the intramolecular nature of the rearrangement. Relative signs of the proton-proton and tin-proton coupling constants in (CH3)3SnC9H7 have been determined.
