- Heterocycle-containing glyphosate derivative, and preparation method and application thereof
-
The invention provides a heterocycle-containing glyphosate derivative. The heterocycle-containing glyphosate derivative has a structure which is shown as the formula (I); in the formula, M1 is selected from H, NH4, K or Na; M2 is selected from H, NH4, K or Na; n is 0 to 5; R is selected from the substances which are shown as the formula in the specification, wherein R' is selected from an alkyl of H or C1 to C4. The heterocycle-containing glyphosate derivative provided by the invention is used as an herbicide, is prevented from being compounded with other pesticides to produce chemical reactions, and is simple in using method and good in pesticide effect. A synthesis method provided by the invention is simple, green and environmentally-friendly, and has good atom economy.
- -
-
Paragraph 0108-0113
(2017/08/29)
-
- OPTICAL ISOMER OF R-FORM OF DIPHENYL ETHER DERIVATIVE AND HERBICIDE CONTAINING THE SAME AS ACTIVE INGREDIENT
-
A herbicide containing an optical isomer of R-form of a diphenyl ether derivative represented by formula (I), which has a more excellent herbicidal activity with a smaller dose thereof than one containing the corresponding racemate. The use of the compound of formula (I) together with various herbicides known per seserves to improve the fast-acting property and widen the herbicidal spectrum with a small dose.
- -
-
-
- Chemical and Mutagenic Analysis of Aminomethylphosphonate Biodegradation
-
Utilization of aminomethyl-, N-methylaminomethyl-, N,N-dimethylaminomethyl-, and N-acetylaminomethylphosphonate by Escherichia coli as a sole source of phosphorus during growth resulted in the extracellular generation of N-methylacetamide, N,N-dimethylacetamide, trimethylamine, and N-methylacetamide, respectively.Product identification relied on synthesis of (13)C-enriched aminomethylphosphonates followed by (1)H NMR analysis of products isolated from the biodegradation of the labeled and unlabeled phosphorus sources.To circumvent the requirement of an intact cell for carbon to phosphorus bond degradation, transposon mutagenesis was exploited as a complement to the chemical analysis.E. coli K-12 were infected with λTn5.Colonies resistant to kanamycin were selected and then screened for loss of the ability to use ethylphosphonate as a sole source of phosphorus.The mutant identified, E. coli SL724, was also unable to degrade aminomethylphosphonates.This combination of chemical and mutagenic analysis points toward a shared mechanism between alkyl- and aminomethylphosphonate biodegradation.
- Avila, L. Z.,Loo, S. H.,Frost, J. W.
-
p. 6758 - 6764
(2007/10/02)
-
- Herbicidal compositions and methods employing esters of N-phosphonomethylglycine
-
N-phosphonomethylglycine and novel derivatives thereof useful as phytotoxicants or herbicides.
- -
-
-
- Increasing carbohydrate deposition in plants with N-phosphono-methylglycine and derivatives thereof
-
N-phosphonomethylglycine and derivatives thereof useful to increase the carbohydrate deposition in plants.
- -
-
-