Some scientific research about 137195-33-6

Compounds in my other articles are similar to this one(2,3-Dihydrocinnolin-4(1H)-one hydrochloride)Formula: C8H9ClN2O, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Synthesis of new derivatives of [1,2,5]triazepino[1,2-a]cinnoline. I. Synthesis of 4-oxo-1,2,3,4-tetrahydrocinnoline hydrochlorides, published in 1989, which mentions a compound: 137195-33-6, mainly applied to oxotetrahydrocinnoline hydrochloride; cinnoline oxotetrahydro, Formula: C8H9ClN2O.

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.

Compounds in my other articles are similar to this one(2,3-Dihydrocinnolin-4(1H)-one hydrochloride)Formula: C8H9ClN2O, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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