Facile synthesis of 2-iodo-spiro[indene-1,1′-isobenzofuran]-3′-ones via iodine-promoted cascade cyclization
作者:Hai-Tao Zhu、Xue Dong、Li-Jing Wang、Mei-Jin Zhong、Xue-Yuan Liu、Yong-Min Liang
DOI:10.1039/c2cc36127b
日期:——
A novel and efficient synthetic approach to substituted 2-iodo-spiro[indene-1,1'-isobenzofuran]-3'-ones has been developed via an iodine-promoted cascade cyclization of 2-(3-hydroxy-3,3-diarylprop-1-yn-1-yl)benzoates. This sequential cascade process is concisely conducted at room temperature. Subsequent palladium-catalyzed Sonogashira, Suzuki, and Heck reactions of the resulting iodides proceed smoothly
通过碘促进2-(3-羟基-3,3-的级联环化反应),开发了一种新颖有效的取代2-碘-螺[茚-1,1'-异苯并呋喃] -3'-的合成方法。二芳基丙-1-炔-1-基)苯甲酸酯。该顺序级联过程在室温下简洁地进行。随后钯催化的Sonogashira,Suzuki和Heck反应生成的碘化物以良好的收率顺利进行。