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Abstract
Phosphorus-containing agrochemicals have made a major contribution to the advancement of agriculture in China. Current status about production and usages of organophosphorus agrochemicals in China is reviewed in this article. Development of new organophosphorus agrochemicals including insecticide, herbicide, and anti-TMV agent in recent years is introduced. Recent progress in research and development of α -(Substituted phenoxyacetoxy)alkylphosphonates is then described: α -(Substituted phenoxyacetoxy)alkylphosphonate II as a kind of potential agrochemicals was found on the basis of the study of a series of α -oxophosphonic acid derivatives I in our Lab. Some compounds II were demonstrated as effective inhibitors of pyruvate dehydrogenase complex from plant (in vitro) and showed notable herbicidal activity against broad-leaved weeds. Compound HW02 as a potential herbicide was evaluated and developed.
Acknowledgments
Financial support by National Basic Research Program of China (2003CB114400) and NNSF of China (20372023) and the Ministry of Science and Technology of China (2006BAE01A04-07).
Notes
a , Growth inhibition: 0 (no effect), 100 (completely kill); Dose = 2.25Kg/ha.
b , Test plants: Monocotyledon: such as barnyard grass, wheat, chinese sorghum.
a Dos = 2.25 Kg/ha; A = pre-emergenc; B = Post-emergence.
b Growth inhibition 0 (no effect); 100 (completely killed) —: not tested.
c Tri = Wheat; Ech = Barnyarcd Grass; Bra = Rape; Com = Common vetc; Ama = Three-colored amaranth; Ave = Wild oats; Lyc = Tomato.
a Evaluation in greenhouse test. Post: post-emergence; —: not tested.