Synthesis and Herbicidal Activities of 2-Methylpropan-2-Aminium Methyl 1-(Substituted Phenoxyacetoxy) Alkylphosphonates |
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Authors: | Ling Gao Xiaoyan Deng Xiaosong Tan Qingwu Long Hao Peng Hongwu He |
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Affiliation: | 1. Key Laboratory of Pesticide &2. Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan , Hubei , P. R. China |
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Abstract: | Abstract A series of 2-methylpropan-2-aminium methyl 1-(substituted phenoxyacetoxy) alkylphosphonates were selectively synthesized by reacting the corresponding dimethyl 1-(substitutedphenoxyacetoxy)alkylphosphonates with an excess of 2-methylpropan-2-amine. All the title compounds were identified by IR, 1H NMR, and 31P NMR, some of them were further analyzed by 19F NMR and 13C NMR. Their herbicidal activity was investigated and the results showed that most of the demethylated aminium salts exhibited notable herbicidal activities against Brassica napus L. and Echinochloa crusgalli. Supplementary materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfer, and Silicon and the Related Elements for the following free supplemental files: Additional text, figures and tables. |
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Keywords: | Synthesis herbicidal activity phosphonate 2-Methylpropan-2-aminium |
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