Photochemistry of pesticides, 3: Photolysis of methyl 2-benzimidazolecarbamate (Carbendazim) in the presence of singlet oxygen |
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Authors: | WM Abdou MR Mahran MM Sidky H Wamhoff |
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Institution: | 1. National Research Centre, Laboratory of Chemical Pesticides, Sh. El-Tahrir, Dokki, Cairo, A.R. Egypt;2. Institut für Organische Chemie und Biochemie der Universität Bonn, Gerhard-Domagk-Str. 1, D-5300 Bonn 1, Bundesrepublik Deutschland |
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Abstract: | The photolysis of methyl 2-benzimidazolecarbamate (Carbendazim, ) in methanol and in the presence of singlet oxygen, was studied. Dimethyl oxalate , 2-aminobenzimidazole , benzimidazole , N,N′-dicarbomethoxyguanidine , monocarbomethoxyguanidine , monocarbomethoxyurea , and 2-guanidinobenzimidazole , were isolated and identified in this reaction.A mechanism that accounts for the formation of the photoreaction products, is presented. |
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