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
Synthesis of Phosphaisoquinolin-1-ones by Pd(II)-Catalyzed Cyclization of <i>o</i>-(1-Alkynyl)phenylphosphonamide Monoesters
作者:Wei Tang、Yi-Xiang Ding
DOI:10.1021/jo0614644
日期:2006.10.1
honamide monoethyl esters was examined, and a newclass of six-membered phosphorusheterocycles (phosphaisoquinolin-1-ones) were formed with high regioselectivity and good yields. The present reaction is the first example of intramolecular addition of P−NH to substituted alkynes, which provides a valuable way to synthesize novel phosphorusheterocycles with potential bioactivities.