Influence of substituents on NMR and barriers to rotation in tert-benzyllithium compounds

G Fraenkel, JM Geckle

文献索引：Fraenkel,G.; Geckle,J.M. Journal of the American Chemical Society, 1980 , vol. 102, p. 2869

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被引用次数: 27

摘要

Abstract: A series of para-substituted a-methyl-a-neopentylbenzyllithium compounds, 5a-i, has been prepared by adding tert-butyllithium to the appropriate a-methylstyrene in hydrocarbon solvents containing 1-3 equiv of an amine or ether. Alternatively, species 5 have been obtained by cleavage of the trimethyltin derivatives in the presence of amines or ethers, but not with diethyl ether. Some exceptions to this general behavior are described. ...