The effect of substituents on the structure and reactivity of organogermanium anions

…, DA Bravo-Zhivotovskii, ID Kalikhman…

文献索引：Pigarev, S. D.; Bravo-Zhivotovskii, D. A.; Kalikhman, I. D.; Vyazankin, N. S.; Voronkov, M. G. Journal of Organometallic Chemistry, 1989 , vol. 369, p. 29 - 42

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被引用次数: 3

摘要

Abstract The replacement of the ethyl group in Et 3 GeH by a phenyl group was shown by equilibrium metallation to halve the pK a value compared with analogous CH acids. NMR showed that the decreased acceptor effect of the phenyl group in the PhEt 2 Ge− anion is caused by a considerably reduced contribution of the mesomeric effect to anion stabilization compared with what happens in the corresponding carbanions. At the same time, the ...