Journal of Organic Chemistry p. 3651 - 3657 (1981)
Update date:2022-08-17
Topics:
Traylor, T.G.
Koermer, G.S.
A series of 1,3-dimetallopropanes, Me3M(CH2)3M'Me3, in which M and M' are C, Si, Ge, Sn, and Pb, has been reacted with triphenylcarbenium ion to remove hydride and yield triphenylmethane.The rate constants for these reactions follow the Hammett-type relationship log k2 = ρΣ?+ + constant, where Σ?+ is the sum of ?+CH2MPh3 for both metal groups.This relationship leads to the conclusion that both metal groups simultaneously stabilize a carbocation intermediate by vertical stabilization through ?-? conjugation.
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