The Michael reaction of silyl enol ethers or ketene silyl acetals with conjugated nitro olefins activated by Lewis acids: new synthesis of 1,4-diketones and .gamma.-oxo esters
Organosilicon-mediated total synthesis of the triquinane sesquiterpenes (±)-β-isocomene and (±)-isocomene
作者:Arndt W. Schmidt、Thomas Olpp、Elke Baum、Tina Stiffel、Hans-Joachim Knölker
DOI:10.1039/c0ob00051e
日期:——
We describe an efficient totalsynthesis of the sesquiterpenes (±)-β-isocomene and (±)-isocomene using a Lewis acid-promoted [3 + 2] cycloaddition of allyl-tert-butyldiphenylsilane as the key-step.