Facile Synthesis of Silylated 4,5-Disubstituted Phthalates via Inverse Electron-demand Cycloaddition of 2-Pyrone-4,5-dicarboxylate with Silylacetylenes
作者:Yujiro Hoshino、Yoshitaka Ikeda、Yota Nakai、Kiyoshi Honda
DOI:10.1246/cl.170820
日期:2017.12.5
and efficient synthesis of silylated 4,5-disubstituted phthalates through the inverse electron-demand [4+2] cycloaddition of 2-pyrone-4,5-dicarboxylate with various silylacetylenes has been developed. The reaction was promoted by 4A molecular sieves (MS 4A) to afford the corresponding polysubstituted arenes with functionalizable silyl groups in good to high yield, thus providing versatile access to a
通过 2-pyrone-4,5-dicarboxylate 与各种甲硅烷基乙炔的逆向电子需求 [4+2] 环加成反应,可简便有效地合成甲硅烷基化 4,5-二取代邻苯二甲酸酯。该反应由 4A 分子筛 (MS 4A) 促进,以良好至高产率提供相应的具有可官能化甲硅烷基的多取代芳烃,从而提供多种功能化邻苯二甲酸酯的通用途径,这些官能化邻苯二甲酸酯是合成精细化学品的有前途的中间体,特别是光化学活性化合物。