On July 31, 2022, Marae, Islam S.; Ibrahim, Omaima F.; Abdel-Hafez, Shams H.; Mohamed, Shaaban K.; Mague, Joel T.; Bakhite, Etify A.-G. published an article.Synthetic Route of 79-07-2 The title of the article was Synthesis, characterization and crystal structure of some novel partially hydrogenated isoquinolines and their fused heterocyclic systems. And the article contained the following:
Ketonic hydrolysis of 7-acetyl-4-cyano-1,6-dimethyl-6-hydroxy-8-phenyl-5,6,7,8-tetrahydro-isoquinoline-3(2H)-thione via heating with aqueous solution of potassium hydroxide resulted in both deacetylation and dehydration affording new 7,8-dihydroisoquinoline scaffold (7,8-DHISQ) I. Two simple mechanistic approaches are postulated for this synthesis. One of them was supported by converting II into I via heating with aqueous solution of potassium hydroxide. I was used as a key intermediate for synthesizing other 7,8-DHISQ’s III and IV, as well as 7,8-dihydrothienoisoquinoline. Reaction of compound II with 2-chloroacetamide by refluxing in ethanol containing sodium acetate gave 7-acetyl-1-amino-5,8-dimethyl-6-phenyl-6,7-dihydrothieno[2,3-c] isoquinoline-2-carboxamide which was converted into full aromatized pyrimidothienoisoquinoline on treatment with tri-Et orthoformate. Reaction of II with both hydrazine hydrate and hydroxylamine hydrochloride afforded tetrahydropyrazolo-isoquinoline and tetrahydroisoxazoloisoquinoline, resp. Reaction of tetrahydroisoxazoloisoquinoline with N-(4-chlorophenyl)-2-chloroacetamide produced (N-phenylcarbamoylmethylthio)tetra-hydroisoxazoloisoquinoline which was converted into tetrahydroisoxazolothieno-isoquinoline upon heating with sodium ethoxide. Also, crystal structures of compounds III and another tetrahydropyrazoloisoquinoline were determined via X-rays diffraction anal. The experimental process involved the reaction of 2-Chloroacetamide(cas: 79-07-2).Synthetic Route of 79-07-2
The Article related to hydrogenated isoquinoline fused heterocyclic system preparation crystal structure, Heterocyclic Compounds (One Hetero Atom): Quinolines and Isoquinolines and other aspects.Synthetic Route of 79-07-2
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