Copper Bromide–Catalyzed C-Alkylation of 2-Amino-1,4-Naphthoquinone: New Synthesis of 1-Azaanthraquinones
作者:Ricardo A. Tapia、Juan Venegas、Lorena B. Cantuarias
DOI:10.1080/00397910902963421
日期:2009.12.15
Copper(I) bromide catalyzes the regioselective Michaeladditionreaction of 2-amino-1,4-naphthoquinone (5) with methyl vinyl ketone and 2-propenal to provide easy access to C-alkylated quinone derivatives, useful precursors of 1-azaanthraquinones.