Reaction of 2-(4-alkylpiperazino)-3-chloro-1,4-naphthoquinones with sodium azide
摘要:
It was shown that 2-(4-alkylpiperazino)-3-chloro-1,4-naphthoquinones react on heating with NaN3 in DMF to form new heterocyclic quinones - 1,2,3,4-tetrahydro-13-alkyl-3,1-(iminoethano)benzo[g]quinoxaline-5,10-diones as well as the corresponding 2-(4-alkylpiperazino)-3-aminonaphthoquinones and naphthimidazopyrazinediones.
The products of the photolysis of 2-(4-alkyI(or phenyl)piperazino)-3-amino-1,4-naphthoquinones, their structures and subsequent thermal transformations
作者:V. N. Berezhnaya、V. P. Vetchinov、V. I. Mamatyuk、R. P. Shishkina
DOI:10.1007/bf00698958
日期:1993.5
Photolysis of 2-(4-alkyI(phenyl)piperazino)-3-amino-1,4-naphthoquinones affords 2-alkyl (phenyl)-1,2,3,4,12,12a-hexahydronaphtho[2′,3′∶4,5]imidazo[1,2-a]pyrazine-6,11-diols which recyclize at elevated temperatures to yield 1,2,3,4-tetrahydro-13-alkyl(phenyl)-3,1-(iminoethano) benzo[g]quinoxaline-5,10-diols. The latter are oxidated with atmospheric oxygen to the corresponding diones. On the basis of