Category: 27427-66-3

In 1970,Journal of Heterocyclic Chemistry included an article by Yanai, Mitsuji; Kuraishi, Tsukasa; Kinoshita, Toshio; Nishimura, Masakuni. Formula: C5H3Cl2N3O. The article was titled 《Recyclization of 3-amino-6-chloroimidazo[4,5-c]pyridazine》. The information in the text is summarized as follows:

3-Benzylideneamino-6-chloroimidazo[4,5-c]pyridazine refluxed with HCl or AcOH gave 5-chloro-8-amino-s-triazolo-[4,5-b]pyridazine and 3-benzylid enehydrazino-4-amino-6-chloropyridazine.3,6-Dichloropyridazine-4-carboxamide(cas: 27427-66-3Formula: C5H3Cl2N3O) was used in this study.

3,6-Dichloropyridazine-4-carboxamide(cas: 27427-66-3) belongs to anime. Milder oxidation, using reagents such as NaOCl, can remove four hydrogen atoms from primary amines of the type RCH2NH2 to form nitriles (R―C≡N), and oxidation with reagents such as MnO2 can remove two hydrogen atoms from secondary amines (R2CH―NHR′) to form imines (R2C=NR′). Tertiary amines can be oxidized to enamines (R2C=CHNR2) by a variety of reagents.Formula: C5H3Cl2N3O

Referemce:
Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem

In 1971,Chemical & Pharmaceutical Bulletin included an article by Yanai, Mitsuji; Kinoshita, Toshio; Watanabe, Hiroshi; Iwasaki, Susumu. Name: 3,6-Dichloropyridazine-4-carboxamide. The article was titled 《Pyridazine derivatives. XIV. Synthesis and reaction of pyrimido-[4,5-c]pyridazines》. The information in the text is summarized as follows:

New pyrimido[4,5-c]pyridazines were prepared by cyclization of 3-amino-4-carbamoylpyridazines (I, R=Cl, R1=NH2; R=NH2, R1=Cl) and 3-chloro-4-(ethoxycarbonyl)pyridazine. When 3-chloro-5-hydroxypyrimido[4,5-c]pyridazine was treated with POCl3 and N,N-dimethylaniline, 1,4-dihydro-3,5-dichloro-4-[4-(N,N-dimethylamino)phenyl]pyrimido[4,5-c]pyridazine (II) was obtained; the structure was established by NMR spectra of the dechlorination and hydrolysis products. Amination of II afforded 3-chloro-5-amino compounds. In the experiment, the researchers used 3,6-Dichloropyridazine-4-carboxamide(cas: 27427-66-3Name: 3,6-Dichloropyridazine-4-carboxamide)

3,6-Dichloropyridazine-4-carboxamide(cas: 27427-66-3) belongs to anime. The methylamines occur in small amounts in some plants. Many polyfunctional amines (i.e., those having other functional groups in the molecule) occur as alkaloids in plants—for example, mescaline, 2-(3,4,5-trimethoxyphenyl)ethylamine; the cyclic amines nicotine, atropine, morphine, and cocaine; and the quaternary salt choline, N-(2-hydroxyethyl)trimethylammonium chloride, which is present in nerve synapses and in plant and animal cells.Name: 3,6-Dichloropyridazine-4-carboxamide

Referemce:
Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem