title: A transition metal-free tandem process to pyridazinopyrido[3,2-f][1,4]thiazepine-diones via Smiles rearrangement.
abstract: A transition metal-free methodology for the synthesis of pyridazinopyrido[3,2-f][1,4]thiazepine-diones was studied. The construction of this tricyclic system went through a one-pot coupling/Smiles rearrangement/cyclization process. The high yields of pure products were obtained through simple recrystallization.
authors.affiliation: School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China.
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Niu
authors.forename: Bingchuan
authors.initials: B
authors.lastname: Yang
authors.forename: Yanqiu
authors.initials: Y
authors.lastname: Li
authors.forename: Shuai
authors.initials: S
authors.lastname: Fang
authors.forename: Zixiao
authors.initials: Z
authors.lastname: Huang
authors.forename: Caixia
authors.initials: C
authors.lastname: Xie
authors.forename: Chen
authors.initials: C
authors.lastname: Ma
mesh_terms: D018360:Crystallography, X-Ray; D003500:Cyclization; D006575:Heterocyclic Compounds, 3-Ring / Q000138:chemical synthesis* / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D011724:Pyridazines / Q000138:chemical synthesis* / Q000737:chemistry; D013841:Thiazepines / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D006575:Heterocyclic Compounds, 3-Ring; D011724:Pyridazines; D013841:Thiazepines