Synthesis of the fully functionalized nine-membered diyne core of the C-1027 chromophore
作者:Masayuki Inoue、Tsukasa Kikuchi、Masahiro Hirama
DOI:10.1016/j.tetlet.2004.06.136
日期:2004.8
the synthesis of the fully functionalized seco-acid of the C-1027chromophore. The key reaction is a LiN(TMS)2/CeCl3-promoted acetylide–aldehyde condensation to construct the highly strained nine-membered diyne. Appropriate functionalization of the substrates significantly affects the yield of the cyclization. The present findings will be the basis of further studies toward the total synthesis of the