Synthesis of Bicyclo[2.1.1]hexan‐5‐ones via a Sequential Simmons‐Smith Cyclopropanation and an Acid‐Catalyzed Pinacol Rearrangement of α‐Hydroxy Silyl Enol Ethers
作者:Chih‐Wei Hsu、Yen‐Ting Lu、Chi‐Ping Lin、Woo‐Jin Yoo
DOI:10.1002/adsc.202300743
日期:2023.9.19
Simmons-Smith cyclopropanation, followed by an acid-catalyzed pinacol rearrangement, was developed to transform α-hydroxy silyl enol ethers into 1-substituted bicyclo[2.1.1]hexan-5-ones. These bicyclic ketones underwent further synthetic manipulations to generate various 1,5-disubstituted bicyclo[2.1.1]hexanes, which could serve as potential bioisosteres of ortho-substituted arenes.
开发了一种合成策略,涉及西蒙斯-史密斯环丙烷化,然后进行酸催化频哪醇重排,将α-羟基硅基烯醇醚转化为1-取代的双环[2.1.1]己-5-酮。这些双环酮经过进一步的合成操作,生成各种1,5-二取代双环[2.1.1]己烷,其可以作为邻位取代芳烃的潜在生物等排体。