Development of an O-Vinylation–Ring-Closing Metathesis Strategy to Access 3,3′-3,4-Dihydropyrans
作者:Anne-Marie Dechert-Schmitt、Shawn Cabral、Daniel Kung
DOI:10.1055/s-0036-1588615
日期:——
Dihydropyrans are common structural motifs that appear in both natural products and pharmaceuticals and are intermediates for the synthesis of tetrahydropyrans. Currently, no reports exist in the literature for the synthesis of 3,3′-differentially disubstituted-3,4-dihydro-2-pyrans. We describe an approach employing abundant esters as starting materials that allows access to these heterocyclic scaffolds
二氢吡喃是常见的结构基序,出现在天然产物和药物中,是合成四氢吡喃的中间体。目前,文献中没有关于合成 3,3'-差异二取代-3,4-dihydro-2-pyrans 的报道。我们描述了一种使用丰富的酯作为起始材料的方法,该方法允许通过独特的 O-乙烯基化-RCM 序列访问这些杂环支架。