Unprecedented Cobalt-Catalyzed Isomerization Reactions to Single Skipped 2,4,7-Trienes Applied in the Synthesis of Urushiol
作者:Anastasia Schmidt、Gerhard Hilt
DOI:10.1002/asia.201402323
日期:2014.9
The cobalt‐catalyzed isomerization of 1,3‐dienes to 2Z,4E‐dienes was realized for the very challenging substrates with an additional doublebond in the side chain. An isomerization to the conjugated 3,5,7‐triene derivative was not observed, which is in stark contrast to observations with many other isomerization catalysts. Accordingly, the synthesis of the natural product urushiol, which has a sensitive