Reaction of 1-bromo-1,2-dienes with alkylcuprates as a regio- and stereo-selective route to acetylenic or allenic compounds
作者:Carmela Polizzi、Carla Consoloni、Luciano Lardicci、Anna Maria Caporusso
DOI:10.1016/0022-328x(91)80179-n
日期:1991.10
Alkylcuprates react with 1-bromo-1,2-dienes to give allenic and/or acetylenic products. The selectivity of the crosscoupling is markedly dependent on the nature of the copper reagent, which plays a prominent role in determining both the regio- and the stereo-chemistry. The preparative aspects of these copper-induced reactions are discussed and their possible mechanism discussed.
Allenes. Part XXVII. Reaction of dialkyl(lithio)copper reagents with 1-bromoallenes, 1-iodoallenes, and 3-chloroalk-1-ynes
作者:Michael Kalli、Phyllis D. Landor、Stephen R. Landor
DOI:10.1039/p19730001347
日期:——
Allenichydrocarbons are obtained in high yield by the reaction of 1-halogenoallenes or 3-chloroalk-1-ynes with dialkyl(lithio)copper reagents at low temperature.