Relative reactivities of ion-pairs of the 1,3-diphenylallyl carbanion towards fluorene
Abstract
The kinetics of the protonation of ion-pairs of the 1,3-diphenylallyl carbanion by fluorene have been studied spectrophotometrically. Where lithium is the counterion, the loose ion-pair reacts about one hundred times faster than the tight ion-pair. The tight ion-pairs of the sodium salts react four or five orders of magnitude faster than the lithium tight ion-pairs.