So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Dange, Nitin S.; Hussain Jatoi, Ashique; Robert, Frederic; Landais, Yannick researched the compound: 2-Bromo-1-(1-methyl-1H-pyrrol-2-yl)ethanone( cas:65438-97-3 ).Safety of 2-Bromo-1-(1-methyl-1H-pyrrol-2-yl)ethanone.They published the article 《Visible-Light-Mediated Addition of Phenacyl Bromides onto Cyclopropenes》 about this compound( cas:65438-97-3 ) in Organic Letters. Keywords: oxonaphthaleneacetate oxobenzo fused heterocyclylacetate chemoselective preparation; photochem addition cyclization aryl bromomethyl ketone cyclopropenecarboxylate ring opening; iridium photocatalyst addition cyclization aryl bromomethyl ketone cyclopropenecarboxylate; nonracemic cyclopropene stereoselective photochem addition cyclization phenacyl bromide. We’ll tell you more about this compound (cas:65438-97-3).
In the presence of the photocatalyst fac-Ir(ppy)3 (ppy = 2-pyridinylphenyl), K2CO3, and LiBr in DMF, aryl bromomethyl ketones such as phenacyl bromide underwent chemoselective photochem. addition and cyclization reactions with cyclopropenecarboxylates such as I under irradiation with blue LED at 0° followed by base-mediated ring opening at 60° without irradiation to give oxonaphthaleneacetates such as II and oxobenzo-fused heterocyclylacetates in 16-51% yields. Nonracemic II was prepared in 40% yield and 95:5 er by the reaction of nonracemic I (95:5 er) with phenacyl bromide. Oxonaphthaleneacetates derived from this reaction can be further converted in one or two steps to polycyclic products such as naphthopyranacetate III and benzoindeneacetate IV.
From this literature《Visible-Light-Mediated Addition of Phenacyl Bromides onto Cyclopropenes》,we know some information about this compound(65438-97-3)Safety of 2-Bromo-1-(1-methyl-1H-pyrrol-2-yl)ethanone, but this is not all information, there are many literatures related to this compound(65438-97-3).
Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem