title: p-Toluenesulphonic acid-promoted, I2-catalysed sulphenylation of pyrazolones with aryl sulphonyl hydrazides.
abstract: Aryl pyrazolone thioethers were synthesized via the I2-catalysed cross-coupling of pyrazolones with aryl sulphonyl hydrazides in the presence of p-toluenesulphonic acid, which has been proposed to promote the reaction by facilitating the decomposition of sulphonyl hydrazides.
authors.affiliation: College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, China. hxxyzhx@mail.tjnu.edu.cn.
authors.forename: Xia
authors.initials: X
authors.lastname: Zhao
authors.forename: Lipeng
authors.initials: L
authors.lastname: Zhang
authors.forename: Tianjiao
authors.initials: T
authors.lastname: Li
authors.forename: Guiyan
authors.initials: G
authors.lastname: Liu
authors.forename: Haomeng
authors.initials: H
authors.lastname: Wang
authors.forename: Kui
authors.initials: K
authors.lastname: Lu
mesh_terms: D001557:Benzenesulfonates / Q000737:chemistry*; D002384:Catalysis; D006834:Hydrazines / Q000737:chemistry*; D007455:Iodine / Q000737:chemistry*; D047069:Pyrazolones / Q000737:chemistry*; D013440:Sulfides / Q000138:chemical synthesis / Q000737:chemistry
chemical_list: D001557:Benzenesulfonates; D006834:Hydrazines; D047069:Pyrazolones; D013440:Sulfides; C029424:hydrazine; C038362:pyrazolone; D007455:Iodine; C029501:4-toluenesulfonic acid