A unified synthesis of cyclic ethers or lactones via Pd-catalyzed intramolecular O -functionalization of sp 3 C H bonds
作者:Haifeng Wang、Youhong Niu、Guoying Zhang、Xin-Shan Ye
DOI:10.1016/j.tetlet.2016.08.086
日期:2016.10
via Pd-catalyzedC(sp3)H activation and intramolecular CO functionalization starting from carboxylic acids or alcohols using the bidentatedirectinggroup has been developed. Substrates with both primary and secondary hydroxyl groups can undergo this reaction to produce the corresponding cyclic ethers. Furthermore, isobenzofuran-1(3H)-ones with either electron-rich or electron-deficient groups as well