Category: 137195-33-6

Stanczak, A.; Kwapiszewski, W.; Szadowska, A.; Pakulska, W. published an article about the compound: 2,3-Dihydrocinnolin-4(1H)-one hydrochloride( cas:137195-33-6,SMILESS:O=C1CNNC2=C1C=CC=C2.[H]Cl ).Reference of 2,3-Dihydrocinnolin-4(1H)-one hydrochloride. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:137195-33-6) through the article.

Alkylation of 4-hydroxycinnolines using Et bromoacetate resulted in N2-substituted acetic acids. These acids were converted to esters and amides. Some of the obtained acids were reduced with zinc dust to give 4-oxo-1,2,3,4-tetrahydro-2-cinnolineacetic acids. Several of the compounds were tested for their effect on central nervous system.

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Reference:
Cinnoline – Wikipedia,
Cinnoline – an overview | ScienceDirect Topics

Groszkowski, Stefan; Stanczak, Andrzej published the article 《Synthesis of new derivatives of [1,2,5]triazepino[1,2-a]cinnoline. I. Synthesis of 4-oxo-1,2,3,4-tetrahydrocinnoline hydrochlorides》. Keywords: oxotetrahydrocinnoline hydrochloride; cinnoline oxotetrahydro.They researched the compound: 2,3-Dihydrocinnolin-4(1H)-one hydrochloride( cas:137195-33-6 ).Name: 2,3-Dihydrocinnolin-4(1H)-one hydrochloride. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:137195-33-6) here.

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.

Here is a brief introduction to this compound(137195-33-6)Name: 2,3-Dihydrocinnolin-4(1H)-one hydrochloride, if you want to know about other compounds related to this compound(137195-33-6), you can read my other articles.

Reference:
Cinnoline – Wikipedia,
Cinnoline – an overview | ScienceDirect Topics