One-Pot Synthesis of 4-Alkynyl-1-Aza-9,10-Anthraquinones from 2-Acylethynyl-3-Amino-1,4-Naphthoquinones
作者:Ekaterina A. Kolodina、Nadezhda I. Lebedeva、Mark S. Shvartsberg
DOI:10.1016/j.mencom.2012.11.019
日期:2012.11
Cyclization of 2-(3-oxoalk-1-ynyl)-3-amino-1,4-naphthoquinones under the action of hydrogen bromide followed by Sonogashira cross-coupling of the thus formed 4-bromo substituted azaanthraquinone with terminal acetylenes represent the one-pot synthesis of 4-alk-1-ynyl-1-aza-9,10-anthraquinones.
Synthesis of 4-haloquinolines and their fused polycyclic derivatives
作者:Mark S. Shvartsberg、Ekaterina A. Kolodina
DOI:10.1016/j.mencom.2008.03.020
日期:2008.3
A general method for the synthesis of 4-chloro- or 4-bromo-substituted quinolines and quinoline moieties of polycyclic compounds includes the addition of hydrogen halides to vic-amino(3-oxoalk-1-ynyl)arenes under mild conditions followed by the intramolecular cyclization of the adducts.