Diversity-Oriented Synthesis of 3-Iodochromones and Heteroatom Analogues via ICl-Induced Cyclization
作者:Chengxiang Zhou、Anton V. Dubrovsky、Richard C. Larock
DOI:10.1021/jo0523722
日期:2006.2.1
The ICl-induced cyclization of heteroatom-substituted alkynones provides a simple, highly efficient approach to various 3-iodochromones and analogues. This process is run under mild conditions, tolerates various functional groups, and generally provides chromones in good to excellent yields. Subsequent palladium-catalyzed transformations afford a rapid increase in molecular complexity and a convenient
ICl诱导的杂原子取代的炔酮的环化为各种3-碘色酮和类似物提供了一种简单,高效的方法。该过程在温和的条件下进行,可以耐受各种官能团,并且通常以高至优异的产率提供色酮。随后的钯催化转化使分子复杂性迅速增加,并方便地制备了多种功能取代的色酮,呋喃和多环化合物。碘硫代色素酮和碘喹啉酮也可通过类似的ICI诱导的环化反应制备。