An efficient method for the reductive conversion of acyclic esters to ethers via a TMS-protected acetal
作者:Alison Hart、Sarah A. Kelley、Tyler Harless、John A. Hood、Michael Tagert、Julie A. Pigza
DOI:10.1016/j.tetlet.2017.06.043
日期:2017.8
We report an efficient two step process for the reduction of non-aromatic esters to the corresponding ethers via the intermediate TMS-protected acetal. The acetal formed after the first step can be carried on directly to the subsequent reduction to the ether without purification. The ester reduction step was monitored using in-situ ReactIR for disappearance of the CO peak, allowing for the exact determination
我们报告了通过中间TMS保护的乙缩醛将非芳族酯还原为相应醚的有效两步过程。第一步后形成的缩醛可以不经纯化直接用于下一步的醚还原。使用原位ReactIR监测酯还原步骤中C O峰的消失,从而准确确定时间和还原剂的当量。此外,使用TMS-咪唑形成缩醛可以使我们大大减少两步法所需的总反应时间。