| Abstract: |  Dinaphthyldiquinhydrone (4) first obtained byStenhouse andGroves
2 reacts as well as 4,4 -bi-(1,2-naphthoquinone)1 with aniline and substituted anilines to give anilinoquinones2 a-h. However, yields of2 are considerable higher if4 is used. The IR-Spectrum of4 is very similar to that of 2,11-dihydroxy-3,10-perylenquinone, therefore we suggest for4 a the structure of a 3,3-dihydroxy-4,4-dioxo-1,1, 4,4-tetrahydro-1,1-binaphthylidene, at least in the solid state.Herrn Prof. Dr.G. Zigeuner in traditionsverbundener Freundschaft zum 60. Geburtstag gewidmet. |
