Indirect Electrophilic Substitutions of
p
-Deficient Heteroaromatics to Prepare
Novel Compounds for High-Tech Applications
Alan R. Katritzky, Peter Czerney, Sergey N. Denisenko, and Volker Jesser
Figure 6. UV/Vis absorption of compounds
11
/
12
at various pH
pK
a
= 5.92
11 12