Tandem Conjugate Addition−Elimination for the Diastereoselective Synthesis of 4E-Alkenyl syn-1,3-Diols
摘要:
We have developed a tandem conjugate addition-elimination sequence for the diastereoselective synthesis of protected allylic syri-1,3-diols, starting from vinyl sulfones. The sulfonyl group was then reduced with sodium amalgam to furnish the E-olefin as the major isomer. This method was applied to the synthesis of a trisubstituted alkene modeling the C21-C25 fragment of Dolabelide C.
Tandem Conjugate Addition−Elimination for the Diastereoselective Synthesis of 4E-Alkenyl syn-1,3-Diols
摘要:
We have developed a tandem conjugate addition-elimination sequence for the diastereoselective synthesis of protected allylic syri-1,3-diols, starting from vinyl sulfones. The sulfonyl group was then reduced with sodium amalgam to furnish the E-olefin as the major isomer. This method was applied to the synthesis of a trisubstituted alkene modeling the C21-C25 fragment of Dolabelide C.