A new route to α,β-unsaturated aldehydes using the condensation of trimethylsilyl β-trimethylsilyl enol ethers with aldehydes.
作者:Lucette Duhamel、Jean Gralak、Abdelhamid Bouyanzer
DOI:10.1016/s0040-4039(00)61554-x
日期:1993.11
β-Trimethylsilyl enol ethers 1 (Z) obtained from β-bromoenolethers 2 were condensed with aliphatic and aromatic aldehydes in the presence of a catalytic quantity of trimethylsilyl triflate leading to ethylenic aldehydes 3 (E) with good yields (79–90%).
β三甲基甲硅烷烯醇醚1(ż)从β-bromoenolethers得到2是在三氟甲磺酸三甲基甲硅烷导致烯醛的催化量的存在下缩合用脂族和芳族醛3(ë)以良好的产率(79-90%)。