title: Copper-catalyzed synthesis of quinoxalines with o-phenylenediamine and terminal alkyne in the presence of bases.
abstract: A novel way of synthesizing quinoxalines efficiently through cyclization of o-phenylenediamine and terminal alkyne by Cu(II) and bases is developed. This reaction proceeds smoothly to give the products in moderate to good yields.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Gansu, Lanzhou 730000, P. R. China.
authors.forename: Wen
authors.initials: W
authors.lastname: Wang
authors.forename: Yongwen
authors.initials: Y
authors.lastname: Shen
authors.forename: Xu
authors.initials: X
authors.lastname: Meng
authors.forename: Mingming
authors.initials: M
authors.lastname: Zhao
authors.forename: Yongxin
authors.initials: Y
authors.lastname: Chen
authors.forename: Baohua
authors.initials: B
authors.lastname: Chen
mesh_terms: D000480:Alkynes / Q000737:chemistry*; D002254:Carbonates / Q000737:chemistry*; D002384:Catalysis; D002586:Cesium / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D003500:Cyclization; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010655:Phenylenediamines / Q000737:chemistry*; D011810:Quinoxalines / Q000138:chemical synthesis* / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D000480:Alkynes; D002254:Carbonates; D009942:Organometallic Compounds; D010655:Phenylenediamines; D011810:Quinoxalines; D002586:Cesium; D003300:Copper; C034193:1,2-diaminobenzene; C545311:cesium carbonate