Abstract
In order to examine the effect on nitration of radical at 9-position having a strong +M effect, 9-diethylamino-acridine was nitrated. 9-Monoethylamino-acridine was obtained as a chief reaction product accompanied with acridone, acridone nitro compound and a small amount of substance which corresponded in analytical values to the nitro compound of monoethylamino-acridine. This shows that nitration is preceded by de-ethylation which phenomenon is also seen during bromination. Application of thiourea to 9-chloracridine results in thio-acridone and of diethylamine in phenol solvent, in 9-phenoxyacridine. These results seem to indicate that the Cl-atom at 9-position is nearer, in its behavior, to Cl in 2-position of quinoline rather than that in 4-position.
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