Pd(II)-catalyzed coupling–cyclization reaction of o-ethylnylphenylphosphonamides monoesters with allyl halide
作者:Wei Tang、Yi Ding、Yi-Xiang Ding
DOI:10.1016/j.tet.2008.08.091
日期:2008.11
4-Allyl-phosphaisoquinolin-1-ones were synthesized by palladium-catalyzed coupling-cyclization of o-ethynylphenylphosphonamide monoethyl esters with allyl halides with high regioselectivity and good yields. The synthesized 4-allyl-phosphaisoquinolin-1-ones show bioactivity as inhibitor of MCH-1R. (c) 2008 Elsevier Ltd. All rights reserved.
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.