D. J. Brook, R. Haltiwanger, T. Koch
Jul 1, 1992
Citations
0
Influential Citations
17
Citations
Journal
Journal of the American Chemical Society
Abstract
3-(Chloromethyl)-5,6-dihydro-5,5-dimethyl-1,4-oxazin-2-one (4) undergoes self-condensation in the presence of diisopropylethylamine to yield 4a,8a-diaza-2,6-dioxa-3,4,7,8-tetrahydro-4,4,8,8-tetramethylanthracene-1,5-dione (DDTTA). DDTTA is an example of a modestly stable, almost flat 1,4-dihydropyrazine. It is green in color, and the long-wavelength visible absorption band shows significant solvatochromism