✍ Scribed by Hong Song; Huiyu Mao; Prof. Dr. Deqing Shi
No coin nor oath required. For personal study only.
A series of α-hydroxy phosphonate derivatives containing pyrimidine moiety were designed and synthesized. Their structures were characterized by IR, 1 H NMR, MS and elemental analysis. The results of preliminary herbicidal activities (in vitro) showed that some of the title compounds 2 exhibited moderate herbicidal activities against dicotyledonous weeds (Brassica campestris L), and most of compounds 2 showed better activity against dicotyledonous weeds than monocotyledonous weeds (Echinochloa crus-galli). Further bioassays (in vivo) indicated that some of the title compounds 2 possessed good and selective herbicidal activity against amaranth pigweed (A. retroflexus) in both pre-and post-emergence treatments at the dose of 1.5 kg/ha. For exmple, compounds 2a, 2b and 2e exhibited 100% inhibition against A. retroflexus in pre-emergence treatment, and 91.7%, 98.8% and 99.5% inhibition in post-emergence treatment at the dose of 1.5 kg/ha, respectively.
📜 SIMILAR VOLUMES
hence does not contribute to ATP synthesis, the function of the pathway has been clariüed in recent years. It is expressed and activated during periods of stress, for example in response to wounding or ýowering.1 This activation provides plant mitochondria with a mechanism by which an increased rate
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.