The Synthesis of Phosphaisocoumarins by Cu(I)-Catalyzed Intramolecular Cyclization of <i>o</i>-Ethynylphenylphosphonic Acid Monoesters
作者:Ai-Yun Peng、Yi-Xiang Ding
DOI:10.1021/ja038627f
日期:2003.12.1
Cu(I)-catalyzed intramolecular cyclization of o-ethynylphenylphosphonic acid monoethyl esters was examined, and a new class of six-membered phosphorus heterocycles was formed with high regioselectivity and good yields. The present reaction is the first example of intramolecular addition of P-OH to alkynes, which provides a convenient way to synthesize novel phosphorus heterocycles having potential
研究了 Cu(I) 催化的邻乙炔基苯基膦酸单乙酯的分子内环化,并形成了一类新的六元磷杂环,具有高区域选择性和良好的产率。本反应是第一个将 P-OH 分子内加成到炔烃的例子,它为合成具有潜在生物活性的新型磷杂环提供了一种方便的方法。