title: A facile synthesis of novel herbicidal 1-phenyl-piperazine-2,6-diones.
abstract: Novel 1-phenyl-piperazine-2,6-diones were prepared by a new facile synthetic route using methyl N-substituted iminomonoacetate as starting material. The structures of these compounds were established by (1)H-NMR, (13)C-NMR and GC/MS. 2-(4-Chloro-5-cyclo-pentyl-oxy-2-fluorophenyl)-tetrahydro-2H-pyrido-[1,2-a]-pyrazine-1,3-(4H,6H)-dione displayed the greatest herbicidal activity.
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, Nankai University, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.forename: Dong
authors.initials: D
authors.lastname: Xiang
authors.forename: Chi-Tung
authors.initials: CT
authors.lastname: Hsu
authors.forename: Zhen-Long
authors.initials: ZL
authors.lastname: Liu
authors.forename: Chao
authors.initials: C
authors.lastname: Wu
authors.forename: Hua-Zheng
authors.initials: HZ
authors.lastname: Yang
mesh_terms: D006540:Herbicides / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D000077489:Piperazine; D010879:Piperazines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D010944:Plants / Q000187:drug effects
chemical_list: D006540:Herbicides; D010879:Piperazines; D000077489:Piperazine