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15N-labeled glyphosate synthesis and its practical effectiveness Scientia Agricola
Tavares,Claudinéia Raquel de Oliveira; Bendassolli,José Albertino; Ribeiro,Daniela Neves; Rossete,Alexssandra Luiza Rodrigues Molina.
Glyphosate is the herbicide with the greatest participation in the world market, and it has been used intensively in agriculture for over 30 years, especially because of its relatively low cost and high effectiveness on different species. This study describes a synthesis method of glyphosate in the form of the isopropylamine salt enriched in the stable nitrogen isotope (15N). The 15N-herbicide synthesis was performed using a phosphomethylation reaction with dialkyl phosphite and 15N-glycine. The tests were conducted at a microscale and equimolar quantities. A 20% yield was obtained at the established conditions. To test the effectiveness of the synthesized glyphosate, an experiment was performed in a growth chamber with the weed Lolium multiflorum...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Lolium multiflorum; Isopropylamine salt; Stable isotope.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100014
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