The use of rieke zinc metal in the selective reduction of alkynes
作者:Whe-Narn Chou、David L. Clark、James B. White
DOI:10.1016/s0040-4039(00)92612-1
日期:1991.1
Rieke zinc has been found to be a very selective reducing agent of alkynes to cis-alkenes, allowing for the reduction of enynes to 1,3-dienes, diynes to enynes or dienes, and of propargylic alcohols to cis-allylic
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.