title: Highly regioselective synthesis of 1-aryl-3 (or 5)-alkyl/aryl-5 (or 3)-(N-cycloamino)pyrazoles.
abstract: [Reaction: see text]. An efficient highly regioselective protocol for the synthesis of isomeric 1,3-diaryl (or 1-aryl-3-alkyl) and 1,5-diaryl (or 1-aryl-5-alkyl)-5 (or 3)-(N-cycloamino)pyrazoles has been reported by cyclocondensation of common alpha-oxoketene N,S-acetal precursors with arylhydrazines by variation of reaction conditions.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India.
authors.forename: S
authors.initials: S
authors.lastname: Peruncheralathan
authors.forename: A K
authors.initials: AK
authors.lastname: Yadav
authors.forename: H
authors.initials: H
authors.lastname: Ila
authors.forename: H
authors.initials: H
authors.lastname: Junjappa
mesh_terms: D002384:Catalysis; D008958:Models, Molecular; D015394:Molecular Structure; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D011720:Pyrazoles