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.
A procedure is described for the efficient N-oxidation of heterocyclic quinones, which represents a considerable improvement over previous, multi-step methods.
Diaz-Guerra, Luis M.; Ocana, Blanca; Perez, Jose Maria, Bulletin des Societes Chimiques Belges, 1995, vol. 104, # 12, p. 683 - 690
作者:Diaz-Guerra, Luis M.、Ocana, Blanca、Perez, Jose Maria、Avendano, Carmen、Espada, Modesta、et al.
DOI:——
日期:——
Ocana Blanca, Espada Modesta, Avendano Carmen, Tetrahedron, 50 (1994) N 31, S 9505-9510
作者:Ocana Blanca, Espada Modesta, Avendano Carmen
DOI:——
日期:——
N-Oxides of azaanthraquinones
作者:Blanca Ocaña、Modesta Espada、Carmen Avendaño
DOI:10.1016/s0040-4020(01)85524-1
日期:——
A procedure is described for the efficient N-oxidation of heterocyclic quinones, which represents a considerable improvement over previous, multi-step methods.
Reactions of aza- and diazaanthraquinone N-oxides
作者:Blanca Ocaña、Modesta Espada、Carmen Avendaño
DOI:10.1016/0040-4020(94)01003-i
日期:1995.1
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.