Insecticidal benzoylphenylurea-S-carbamate: a new propesticide with two effects of both benzoylphenylureas and carbamates.
New propesticides with two effects of both benzoylphenylureas and carbamates were designed and synthesized by the key intermediate N-chlorosulfenyl-N-methylcarbamate, which was prepared for the first time. These benzoylphenylurea-S-carbamates were identified by 1H NMR spectroscopy and elemental analyses. The bioactivities of the new compounds were evaluated. These benzoylphenylurea-S-carbamates exhibited excellent larvicidal activities against Oriental armyworm, some of which were good as compared to the parent benzoylphenylureas. Toxicity assays indicated that these benzoylphenylurea-S-carbamates had knockdown activities of carbamates at higher concentrations and insect growth regulator activities of benzoylphenylureas at lower concentrations. We found that the title compounds exhibited good systemic larvicidal activities against Oriental armyworm, which were especially advantageous when combating sucking pests. Some of these title compounds can kill aphids and mosquitoes as well.
Chen
Li
L
State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
Huang
Zhiqiang
Z
Wang
Qingmin
Q
Shang
Jian
J
Huang
Runqiu
R
Bi
Fuchun
F
D000818:Animals; D001042:Aphids; D002219:Carbamates / Q000138:chemical synthesis* / Q000737:chemistry; D009033:Culicidae; D007306:Insecticides / Q000138:chemical synthesis*; D007814:Larva; D007915:Lepidoptera; D009682:Magnetic Resonance Spectroscopy; D010671:Phenylurea Compounds / Q000138:chemical synthesis* / Q000737:chemistry
D002219:Carbamates; D007306:Insecticides; D010671:Phenylurea Compounds