作者:JoséMaría Pérez、Carmen Avendaño、J.Carlos Menéndez
DOI:10.1016/s0040-4039(97)01006-x
日期:1997.6
The reaction between 1-dimethylamino-1-azadienes and 2,6-dibromobenzoquinone gave excellent yields of the corresponding double hetero Diels-Alder cycloadducts. 3-Substituted azadienes directly gave aromatic 1,8-diazaanthraquinone derivatives, while 4-substituted azadienes led to 1,8-dimethylamino-1,4,5,8-tetrahydro-1,8-diazaanthraquinones, which were aromatized under thermal conditions. (C) 1997 Elsevier Science Ltd.