作者:Christian Schäfer、Michel Miesch、Laurence Miesch
DOI:10.1002/chem.201200116
日期:2012.6.25
Ring out the old: The cycloisomerization of alkynyl silyl enol ethers proceeds at ambient temperature under the mild conditions of silver catalysis (see scheme). Mono‐ or bicyclic spiro compounds can be obtained by 5‐exo‐dig reactions. Trapping the vinyl silver species with an iodide source, such as N‐iodosuccinimide (NIS), afforded the alkenyl iodide derivatives.
摆脱陈旧:炔基甲硅烷基烯醇醚的环异构化反应在环境温度下,在银催化的温和条件下进行(参见方案)。单环或双环螺化合物可通过5-外切反应获得。用碘化物源(如N-碘琥珀酰亚胺(NIS))捕获乙烯基银物质,得到烯基碘化物衍生物。