作者:Luigi Aurelio、Rohan Volpe、Rosliana Halim、Peter J. Scammells、Bernard L. Flynn
DOI:10.1002/adsc.201400072
日期:2014.6.16
Iodocyclization of ethynyl methyl sulfides gives 3‐iodo‐2‐thiomethyl heterocycles, setting up the synthesis of thieno‐fused systems through a subsequent iteration of alkyne coupling and iodocylization. This approach can also be exploited in the synthesis of polyfused thiophenes. In developing this protocol it was necessary to address issues associated with unfavourable electronic bias and redox sensitivity
乙炔基甲基硫醚的碘环化产生3-碘-2-硫代甲基杂环,通过随后的炔烃偶联和碘化反应的迭代,建立了硫杂稠合系统的合成。这种方法也可以用于多聚噻吩的合成中。在开发该协议时,有必要解决与某些基材中不利的电子偏压和氧化还原敏感性相关的问题。解决这些问题的方式应该在碘环化化学的其他地方证明是有用的。