Synthese und chemische Reaktionen substituierter 4,8-Dioxo-4H,8H-benzodiisoxazoliumsalze
作者:Richard Neidlein、Alfred Bischer
DOI:10.1007/bf00809658
日期:1991.5
N-alkylated 2,5-diamino-p-benzoquinone-3,6-dicarboacidamides 6 and 7 are synthesized by alkylation and following reduction of 3,7-diamino-substituted benzodiisoxazoldiones 1c-f. Quinoneheterocycles 2a-b react under the presence of amines in a similar way to dioxobenzodiisoxazolium-salts 3 and 4 via intermediate formation of vinylogous, intramolecularly stabilized carbonylnitrenes to mono-, bi- and tricycled quinone-derivates 8, 9, 11 and 13-15.