title: Synthesis, fungicidal, and insecticidal activities of beta-Methoxyacrylate-containing N-acetyl pyrazoline derivatives.
abstract: 1-Acetyl-3,-5-diarylpyrazolines have received considerable interests from the fields of medicinal and agricultural chemistry due to their broad spectrum of biological activities. To discover new lead compounds exhibiting both fungicidal and insecticidal activities, a series of pyrazoline derivatives were designed and synthesized by introducing the beta-methoxyacrylate pharmacophore into the scaffold of 1-acetyl-3,5-diarylpyrazoline. The fungicidal activities against Pseudoperoniospora cubensis, Sphaerotheca fuliginea, Botrytis cinerea, and Rhizoctonia solani and the insecticidal activities against Aphis medicagini, Nilaparvata legen, Mythima separata, and Tetranychus cinnabarnus were screened. The most potent compound 13, 1-aceto-3-[m-[o-(E-1-methoxycarboxyl-2-methoxy)-1-yl]benzyloxy]phenyl-5-(benzo-[1,3]-dioxolyl)-4,5-dihydro- pyrazoline, was identified. Its fungicidal IC(50) values against P. cubensis and S. fuliginea are 26.6 and 57.6 microg mL(-1), respectively, while its insecticidal LC(50) value against M. separata is 26.6 microg mL(-1). These results indicated that compound 13 could be used as a lead for further developing new pyrazoline type products exhibiting both fungicidal and insecticidal activities.
authors.affiliation: Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, People's Republic of China.
authors.forename: Pei-Liang
authors.initials: PL
authors.lastname: Zhao
authors.forename: Fu
authors.initials: F
authors.lastname: Wang
authors.forename: Ming-Zhi
authors.initials: MZ
authors.lastname: Zhang
authors.forename: Zu-Ming
authors.initials: ZM
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Huang
authors.forename: Guang-Fu
authors.initials: GF
authors.lastname: Yang
mesh_terms: D000179:Acrylates / Q000737:chemistry*; D052117:Benzodioxoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D005659:Fungicides, Industrial / Q000737:chemistry / Q000494:pharmacology*; D007306:Insecticides / Q000737:chemistry; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D013329:Structure-Activity Relationship
chemical_list: C539559:1-aceto-3-(3-(2-(1-methoxycarboxyl-2-methoxy)-1-yl)benzyloxy)phenyl-5-(benzo-(1,3)dioxolyl)-4,5-dihydropyrazoline; D000179:Acrylates; D052117:Benzodioxoles; D005659:Fungicides, Industrial; D007306:Insecticides; D011720:Pyrazoles