Silver(I) and gold(I)-promoted synthesis of alkylidene lactones and 2H-chromenes from salicylic and anthranilic acid derivatives
作者:Roberto Nolla-Saltiel、Elvis Robles-Marín、Susana Porcel
DOI:10.1016/j.tetlet.2014.06.060
日期:2014.8
methylene seven-membered ring lactones. Depending on the metal, divergent reaction pathways were found for non terminal alkynoic acids. While Ag(I) led to lactones, Au(I) led to 2H-chromenes coming from the hydroarylation of the alkyne.
Ag(I)和Au(I)有效地催化末端炔酸的环异构化为亚甲基七元环内酯。取决于金属,对于非末端炔酸发现了不同的反应途径。Ag(I)生成内酯,而Au(I)生成2 H-色烯,其来自炔烃的加氢芳基化反应。