论文信息：Ren Zili; Lv Min,* Zhang Yuling, Li Tianze, Xu Hui *. High Value–Added Application of Natural Plant Products in Crop Protection: Honokiol Monoester/Diester Derivatives Containing the Novel Core Scaffold of Benzodihydrofuran and Their Agricultural Bioactivities and Control Effects. Journal of Agricultural and Food Chemistry , 2022, 70(17): 5319-5329.
JCR分区：Q1，中科院大类分区：1区，Top期刊
论文摘要：To discover new potential botanical insecticides from plant secondary metabolites, a series of new honokiol-type monoester/diester derivatives containing the core scaffold of benzodihydrofuran were synthesized by structural modification of honokiol. Against Mythimna separata Walker, 2-hydroxymethy-5-(2′-(para-chlorobenzoyloxy)-5′-(1″,2″-epoxypropanyl))phenyl-2,3-dihydrobenzofuran (5) and 2-(2″-chloropyridin-5″-ylcarbonyloxy)methylene-5-(2′-(2″-chloropyridin-5″-ylcarbonyloxy)-5′-(1″,2″-epoxypropanyl))phenyl-2,3-dihydrobenzofuran (37) displayed >2.1-fold promising insecticidal activity of the precursor honokiol.Against Aphis citricola Van der Goot, 2-hydroxymethy-5-(2′-(tridecylcarbonyloxy)-5′-(1″,2″-epoxypropanyl))phenyl-2,3-dihydrobenzofuran (21) (LD50: 0.049 μg/nymph) and 2-(para-fluorobenzylcarbonyloxy)methylene-5-(2′-(para-fluorobenzylcarbonyloxy)-5′-(1″,2″-epoxypropanyl))phenyl-2,3-dihydrobenzofuran (31) (LD50: 0.040 μg/nymph) showed 3.5- and 4.3-folds potent aphicidal activity of honokiol (LD50: 0.171 μg/nymph), respectively. Interestingly, 2-(tridecylcarbonyloxy)methylene-5-(2′-(tridecylcarbonyloxy)-5′-(1″,2″-epoxypropanyl))phenyl-2,3-dihydrobenzofuran (46) (LC50: 0.186 mg/mL) and 2-(dodecylcarbonyloxy)- methylene-5-(2′-(dodecylcarbonyloxy)-5′-(1″,2″-epoxypropanyl))phenyl-2,3-dihydrobenzofuran (53) (LC50: 0.159 mg/mL: >6.4- fold of honokiol (LC50: 1.024 mg/mL)) exhibited promising acaricidal activity and control efficiency against Tetranychus cinnabarinus Boisduval. Structure−activity relationships indicated that a specific length of the aliphatic chain is necessary for the agricultural activities of honokiol monoester/diester derivatives, especially for the acaricidal activity of diester derivatives.
