COA of Formula: C8H9ClN2O. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 2,3-Dihydrocinnolin-4(1H)-one hydrochloride, is researched, Molecular C8H9ClN2O, CAS is 137195-33-6, about Synthesis of new derivatives of [1,2,5]triazepino[1,2-a]cinnoline. I. Synthesis of 4-oxo-1,2,3,4-tetrahydrocinnoline hydrochlorides. Author is Groszkowski, Stefan; Stanczak, Andrzej.
The title cinnolines (I, R1 = R3 = R4 = H, R2 = H, Cl, Me; R1 = R2 = R3 = H, R4 = Cl, Me, OMe; R1 = R4 = H, R2 = R3 = OMe; R2 = R3 = R4 = H, R1 = Cl) were prepared by reduction of appropriately substituted 4-hydroxycinnlines (70-80% yields) and 4-hydroxy-3-cinnolinecarboxylic acids (55-67% yields) with Zn dust in AcOH-EtOH.
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Reference:
Cinnoline – Wikipedia,
Cinnoline – an overview | ScienceDirect Topics