A regioselective synthesis of 4,5- and 4,8- disubstitutedaza-anthraquinones by the diels-alder route
作者:Mohamed Chigr、Houda Fillion、Anny Rougny
DOI:10.1016/s0040-4039(00)82224-8
日期:1988.1
Cycloadditions of 1-(dimethylamino)-4-methyl-1-azabuta-1,3-diene to naphtoquinones afford after elimination of dimethylamine the 1,4-dihydro aza-anthraquinones . A high regioselectivity is observed with juglone and methyljuglone. Aromatization of compounds leads to the corresponding aza-anthraquinones .
1-(二甲基氨基)-4-甲基-1-azabuta-1,3-二烯与萘醌的环加成反应在消除二甲胺后得到1,4-二氢氮杂蒽醌。观察到juglone和methyljuglone具有很高的区域选择性。化合物的芳香化导致相应的氮杂蒽醌。