Carbanions. 20. Rearrangements in reactions of 5-chloro-4,4-diphenyl-2-pentyne, 1-chloro-5,5-dimethyl-2,2-diphenyl-3-hexyne, and 5,5-dimethyl-2,2-diphenyl-3-hexyne with alkali metals. Cation effects on migratory aptitudes of groups
The first elimination reactions of silyl enol ethers to lithiated allenes are reported. These reactions allow a direct transformation of readily available silyl enol ethers into functionalized allenes. The action of three to four equivalents of lithium diisopropylamide (LDA) on silyl enol ethers results in the formation of lithiated allenes by initial allylic lithiation, subsequent elimination of a lithium
Libman,N.M. et al., Journal of Organic Chemistry USSR (English Translation), 1979, vol. 15, p. 1243 - 1247
作者:Libman,N.M. et al.
DOI:——
日期:——
Libman,N.M. et al., Journal of Organic Chemistry USSR (English Translation), 1974, vol. 10, p. 2074 - 2076
作者:Libman,N.M. et al.
DOI:——
日期:——
Carbanions. 20. Rearrangements in reactions of 5-chloro-4,4-diphenyl-2-pentyne, 1-chloro-5,5-dimethyl-2,2-diphenyl-3-hexyne, and 5,5-dimethyl-2,2-diphenyl-3-hexyne with alkali metals. Cation effects on migratory aptitudes of groups
作者:Erling Grovenstein、Kuen-Wai Chiu、Bhalchandra B. Patil