1-Azaanthracene-2,5,8-triones and 1,8-diazaanthracene-2,7,8,10-tetraones, Which are structurally related to diazaquinomycin, are prepared by functionalization of azaanthraquinone N-oxides. The complete procedure implies a Diels-Alder reaction as a key step, followed by N-oxidation and treatment of the N-oxides with benzoyl or tosyl chlorides in the presence of water.
DOI:
10.1016/0040-4020(94)01003-i
作为产物:
描述:
Fjsrawzxmqetdo-uhfffaoysa- 以73%的产率得到
参考文献:
名称:
Ocana Blanca, Espada Modesta, Avendano Carmen, Tetrahedron, 50 (1994) N 31, S 9505-9510
A procedure is described for the efficient N-oxidation of heterocyclic quinones, which represents a considerable improvement over previous, multi-step methods.
Synthesis of diaza-anthraquinones by hetero diels-alder cycloaddition reactions
作者:C. Gesto、E. de la Cuesta、C. Avendaño*
DOI:10.1016/s0040-4020(01)89083-9
日期:——
GESTO, C.;DE, LA CUESTA E.;AVENDANO, C., TETRAHEDRON, 45,(1989) N4, C. 4477-4484