Srinivasulu, Vunnam; Al-Marzooq, Farah; Hamad, Mohamad; Khanfar, Monther A.; Ramanathan, Mani; Soares, Nelson C.; Al-Tel, Taleb H. published the article 《Sequencing Groebke-Blackburn-Bienayme and Aza-Michael Addition Reactions: A Modular Strategy for Accessing a Diverse Collection of Constrained Benzoxazepine and Imidazopyrazine Systems》. Keywords: benzoxazepinium fuse imidazopyridine preparation; thiazoimidazobenzooxazepinium trifluoromethane sulfonate preparation; pyridothiazoimidazooxzazepinoquinolium trifluoromethane sulfonate preparation; imidazopyrazinoimidazothiazole preparation.They researched the compound: 4-(4-Bromophenyl)-5-methylthiazol-2-amine( cas:65705-44-4 ).HPLC of Formula: 65705-44-4. 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:65705-44-4) here.
A divergent strategy that permitted the access to diversely functionalized benzoxazepinium scaffolds fused to various heterocycles was reported. The described strategy featured a one-pot combination of the Groebke-Blackburn-Bienaym reaction and an aza-Michael addition Me (E)-4-(2-formylphenoxy)but-2-enoates were utilized as central elements in this cascade. These building blocks were reacted with a variety of functionalized amino-azines and tert-Bu isocyanide under ytterbium triflate [Yb(OTf)3] catalysis. The cascade represented a rapid, modular and atom-economic process that leaded to the construction of a diverse collection of constrained benzoxazepinium systems from a wide substrate scope.
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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics