Stereochemistry of the reaction of Si–phenyl silenes with butadienes: elaboration of the silacycloadducts to provide a novel route to substituted lactones
作者:Mahesh J. Sanganee、Patrick G. Steel、Daniel K. Whelligan
DOI:10.1039/b404175e
日期:——
silacycles accompanied by variable amounts of competing ene, [2 + 2] and silene dimer by-products. The silacycles are formed with good chemo- and stereo-selectivity and provide access to diols and lactones via a phenyl-triggered Fleming-Tamao oxidation.
可以通过[4 + 2]环加成途径,通过一系列烷基丁二烯截留通过甲硅烷基修饰的Peterson烯烃化程序生成的硅,从而提供硅杂环化合物,并伴以不同量的竞争性烯,[2 + 2]和硅二聚体副产物。形成的silacycles具有良好的化学和立体选择性,并通过苯基触发的Fleming-Tamao氧化提供了与二醇和内酯的通道。