365217-38-5Relevant academic research and scientific papers
Synthesis of arylnaphthoquinones and their reactions with o-substituted primary aromatic amines
Fandy, Ragab F.,Abbas, Hessan H.,Al-Hussaini, Ayman S.,Hammam, Ahmed S.
, p. 795 - 800 (2001)
Cycloaddition reaction of 2-aryl-1,4-benzoquinones 1a-d with a number of different dienes, namely 2,3-dimethylbutadiene; 1,4-diphenylbutadiene and anthracene yield 2-aryl-6,7-dimethyl-1,4-naphthoquinones 3a,b; 2,5,8-triphenyl-1,4-naphthoquinone 4 and 2-aryl-1,4,9,10-tetrahydro-9,10-o-benzoanthracene-1,4-dione 5, respectively were investigated. In addition, the cycloaddition reaction of 2-aryl-1,4-benzoquinones 1d,e with 2,3-dimethylbutadiene was also investigated to yield 2-aryl-5,8-dihydro-6,7-dimethyl-1,4-naphthohydroquinones 2a,b. Cyclocondensation reactions of Diels-Alder adducts 2b, 3b, 5a with ethylenediamine, o-substituted primary aromatic amines gave quinoxaline, phenazine, phenoxazine and phenothiazine ocyclic derivatives 6-14.
