title: Highly efficient synthesis of 3-amino-/alkylthio-cyclobut-2-en-1-ones based on the cyclization of acyl ketene dithioacetals.
abstract: A new strategy for the highly efficient one-pot synthesis of 3-amino-/alkylthio-cyclobut-2-en-1-ones based on the cyclization of acyl ketene dithioacetals is disclosed. In addition, the rearrangement of 3-amino-cyclobut-2-en-1-ones to 4-quinolone derivatives is described.
authors.affiliation: Department of Chemistry, Northeast Normal University, Changchun 130024, China. zhaoyl351@nenu.edu.cn
authors.forename: Yu-Long
authors.initials: YL
authors.lastname: Zhao
authors.forename: Shao-Chun
authors.initials: SC
authors.lastname: Yang
authors.forename: Chong-Hui
authors.initials: CH
authors.lastname: Di
authors.forename: Xiao-Dan
authors.initials: XD
authors.lastname: Han
authors.forename: Qun
authors.initials: Q
authors.lastname: Liu
mesh_terms: D042462:4-Quinolones / Q000138:chemical synthesis* / Q000737:chemistry; D000080:Acetals / Q000138:chemical synthesis / Q000737:chemistry*; D000588:Amines / Q000138:chemical synthesis / Q000737:chemistry*; D003500:Cyclization; D003503:Cyclobutanes / Q000138:chemical synthesis* / Q000737:chemistry; D013438:Sulfhydryl Compounds / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D042462:4-Quinolones; D000080:Acetals; D000588:Amines; D003503:Cyclobutanes; D013438:Sulfhydryl Compounds; C553737:cyclobutenone