A convenient route to unsymmetrical conjugated diynes
作者:Mouâd Alami、Fabiola Ferri
DOI:10.1016/0040-4039(96)00414-5
日期:1996.4
Various unsymmetricalconjugated diynes can be prepared in good to excellent isolated yields by copper catalyzed coupling reaction of terminal alkynes with 1-iodo alkynes in pyrrolidine. In the case of 1-bromo alkynes, the presence of a catalytic amount of PdCl2(PPh3)2 improved the yield of coupling products.
[EN] CHROMIUM-MEDIATED COUPLING AND APPLICATION TO THE SYNTHESIS OF HALICHONDRINS<br/>[FR] COUPLAGE INDUIT PAR CHROME ET APPLICATION À LA SYNTHÈSE D'HALICHONDRINES