Strukturaufklärung von ausgewählten nitro- und sulfonsäuresubstituierten 1,2-Naphthochinon-2-diaziden

Structure Determination of Selected Nitro and Sulfonic Acid Substituted 1,2-Naphthoquinone-2-diazides Selected nitro derivatives of 1,2-naphtoquinone-2-diazide 2 and 5 have been synthesized, the position of the NO₂-group has been unambigously determined by means of ¹H and ¹³C n.m.r. spectroscopy, and the structure of these compounds has been comprehensively determined in relation to unsubstituted 1 and sulfonic acid substituted derivatives 3 , 3a , 4 and 4a . Furthermore, the spectroscopical behaviour, especially in the uv/vis region, was examined in correlation to quantum chemical calculations.