133409-72-0Relevant articles and documents
Green synthetic method of kresoxim-methyl
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Paragraph 0040; 0047; 0048; 0051; 0058; 0059; 0062; 0069, (2019/11/13)
The invention belongs to the technical field of fine chemical engineering, and particularly relates to a green synthetic method of kresoxim-methyl. The method comprises the following steps: carrying out nitrous nitrification by using 2-methylbenzyl cyanide as an initial raw material, carrying out methylation, carrying out hydrolytic methylation or hydrolytic esterification, carrying out bromination and carrying out an etherification reaction to obtain the high-content kresoxim-methyl. The method provided by the invention has a short reaction period, a high conversion rate, and excellent product quality, changes the defect that high-concentration hydrochloric acid gas is used for preparation in a traditional process, and has the advantages of simple operation steps, simple equipment, low energy consumption, a short period, high productivity and environmental protection.
AN IMPROVED PROCESS FOR THE PREPARATION OF TRIFLOXYSTROBIN
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Page/Page column 16; 17, (2019/04/10)
The present invention relates to an improved process for the preparation of trifloxystrobin of formula (I), which is simple, economical, efficient, user and environment friendly, moreover commercially viable with higher yield and chemical purity.
Benzpyrole derivative containing dithioacetal unit, preparation method and application thereof
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Paragraph 0049; 0053; 0054, (2019/10/29)
The invention discloses a benzpyrole derivative containing a dithioacetal unit, a preparation method and application thereof. The benzpyrole derivative has the general structural formula (I) (being defined as in the specification), in the formula, R1 is substitution hydrogen or a halogen atom, R2 is a substitution aromatic ring, 1-propyl alcohol, methyl, ethyl, propyl, isopropyl, butyl, isobutyl or dodecyl, and X is a halogen atom and the methyl. The benzpyrole derivative has the good biological activity for plant virus diseases, the preparation process is simple, and the production cost is low.
Trifloxystrobin and preparation method of intermittent thereof
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Paragraph 0090-0093, (2018/12/13)
The invention relates to a preparation method of trifloxystrobin. Preparation reaction of the trifloxystrobin is as shown in the description, wherein R is selected from C2-C5 linear alkyl or C3-C5 branched alkyl; in bromination reaction, a brominating agent is selected from NBS or 1,3-dibromo-5,5-dimethylhydantoin.
Design, Synthesis, Antiviral Bioactivity, and Defense Mechanisms of Novel Dithioacetal Derivatives Bearing a Strobilurin Moiety
Chen, Jin,Shi, Jing,Yu, Lu,Liu, Dengyue,Gan, Xiuhai,Song, Baoan,Hu, Deyu
, p. 5335 - 5345 (2018/05/23)
A series of dithioacetal derivatives bearing a strobilurin moiety were designed and synthesized on the basis of our previous work. The antiviral activities of these compounds against Potato virus Y (PVY), Cucumber mosaic virus (CMV), and Tobacco mosaic virus (TMV) were systematically evaluated. Bioassay results indicated that C14 elicited excellent curative and protective activities against PVY, CMV, and TMV. The former had 50% effective concentrations (EC50) of 125.3, 108.9, and 181.7 μg/mL, respectively, and the latter had 148.4, 113.2, and 214.6 μg/mL, respectively, which were significantly superior to those of lead compound 6f (297.6, 259.6, and 582.4 μg/mL and 281.5, 244.3, and 546.3 μg/mL, respectively), Ningnanmycin (440.5, 549.1, and 373.8 μg/mL and 425.3, 513.3, and 242.7 μg/mL, respectively), Chitosan oligosaccharide (553.4, 582.8, and 513.8 μg/mL and 547.3, 570.6, and 507.9 μg/mL, respectively), and Ribavirin (677.4, 690.3, and 686.5 μg/mL and 652.7, 665.4, and 653.4 μg/mL, respectively). Moreover, defensive enzyme activities and RT-qPCR analysis demonstrated that the antiviral activity was associated with the changes of SOD, CAT, and POD activities in tobacco, which was proved by the related proteins of abscisic acid signaling pathway. This work provided a basis for further design, structural modification, and development of dithioacetal derivatives as new antiviral agents.
A NOVEL PROCESS FOR THE PREPARATION OF TRIFLOXYSTROBIN
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Page/Page column 20-21, (2017/07/14)
The present invention relates to a novel process for preparation of methyl (αE)-(α- (methoxyimino)-2-[[[(E)-[1-[3- (trifluoromethyl) phenyl] ethylidene] amino] oxy] methyl] benzeneaceate (Trifloxystrobin) compound of formula (I) in free form or in agro chemically acceptable salt form useful as a pest control agent.The present invention also relates to a novel process for preparation of methyl (2E)-[2-(bromomethyl) phenyl] (methoxyimino) ethanoate of formula (X) intermediate of Trifloxystrobin. [Formula should be inserted here].
Synthesis and biological evaluation of kresoxim-methyl analogues as novel inhibitors of hypoxia-inducible factor (HIF)-1 accumulation in cancer cells
Lee, Sanghyuck,Kwon, Oh Seok,Lee, Chang-Soo,Won, Misun,Ban, Hyun Seung,Ra, Choon Sup
, p. 3026 - 3029 (2017/05/31)
We designed and synthesized strobilurin analogues as hypoxia-inducible factor (HIF) inhibitors based on the molecular structure of kresoxim-methyl. Biological evaluation in human colorectal cancer HCT116 cells showed that most of the synthesized kresoxim-methyl analogues possessed moderate to potent inhibitory activity against hypoxia-induced HIF-1 transcriptional activation. Three candidates, compounds 11b, 11c, and 11d were identified as potent inhibitors against HIF-1 activation with IC50 values of 0.60–0.94?μM. Under hypoxic condition, compounds 11b, 11c, and 11d increased the intracellular oxygen contents, thereby attenuating the hypoxia-induced accumulation of HIF-1α protein.
Synthesis and evaluation of essential oil-derived β-methoxyacrylate derivatives as high potential fungicides
Su, Haihuan,Wang, Wenda,Bao, Longzhu,Wang, Shuangshuang,Cao, Xiufang
, (2017/06/08)
Essential oils (EOs) are plant-derived aroma compounds with a wide range of biological activity, but their actions are slow, and they are typically unstable to light or heat, difficult to extract and so on. To find highly potential fungicides derived from natural EOs, a series of essential oil-based β-methoxyacrylate derivatives have been designed and synthesized. The target compounds have been screened for their potential fungicidal activity against eleven species of plant pathogen fungi, including Alternaria alternata, Phomopsis adianticola, Pestalotiopsis theae, Sclerotinia sclerotiorum, etc. Compared with intermediates I, the parent essential oils and azoxystrobin, almost all of essential oil-based β-methoxyacrylate derivatives exhibited significantly better fungicidal activity. Further investigation revealed that some compounds showed remarkable inhibitory activities against Pestalotiopsis theae, Phomopsis adianticola, Sclerotinia sclerotiorum and Magnapothe grisea at different concentrations in contrast to the commercial product azoxystrobin. Compound II-8 exhibited particularly significant fungicidal activity.
Synthesis and fungicidal activity of (E)-α-(Methoxyimino)benzeneacetate derivatives containing 1,2,4-triazole schiff base side Chain
Song, Hong-Xing,Shi, De-Qing
, p. 1345 - 1348 (2015/04/27)
Figure presented To find new strobilurin analogs with high activity against resistant pathogens, twelve (E)-α-(methoxyimino)benzeneacetate derivatives containing 1,2,4-triazole Schiff base side chain 3a-3l were designed and synthesized. Their structures were confirmed by IR, 1H-NMR, EIMS, and elemental analyses. Bioassays indicated that most of the target compounds showed moderate to good fungicidal activities against Physalospora piricola Nose and Alternaria solani. For example, compounds 3d, 3e, and 3f possessed 99.5%, 100%, and 95.6% inhibition against Physalospora piricola Nose, whereas compounds 3d, 3f, and 3g exhibited 92%, 91%, and 92% inhibition against Alternaria solani at the concentration of 50 mg/L, respectively.
Synthesis, fungicidal activity, structure-activity relationship and density functional theory studies of novel oxime ether derivatives containing 1-aryl-3-oxypyrazoles
Lv, Kunzhi,Liu, Yuanyuan,Li, Yi,Xu, Guanghui,Pan, Xuechun,Li, Fangshi,Chen, Kai,Huang, Bin,Yang, Yaping
, p. 594 - 600 (2015/11/27)
A series of 16 oxime ether derivatives containing 1-aryl-3-oxypyrazoles were synthesised, and the structure of one of them, (E)-methyl 2-(2-({(1-(4-chlorophenyl)-1H-pyrazol-3-yl)-oxy}methyl)phenyl)-2-(methoxyimino)acetate was determined by X-ray diffraction crystallography. Preliminary bioassays indicated that some of these compounds exhibited very good fungicidal activities against Rhizoctonia solani, especially the ester 2-(2-({(1-(4-chlorophenyl)-1H-pyrazol-3-yl)-oxy}methyl)phenyl)-2-(methoxyimino)acetate, which displayed greater activity than control compound pyraclostrobin at a dosage of 0.1 μg mL-1. The relationship between structure and fungicidal activity was discussed. Density functional theory studies of the 3-methyl heterocyclic ester and the 4-chorophenyl heterocyclic N-methylamide were carried out and the results discussed in terms of the wide difference in fungicidal activity shown by each compound.