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Chinese Journal of Structural Chemistry 2020年第3期39卷 500-510,378页

作者： MA Liang YAO Qing-Zhao ZHOU Yu-Ming WANG Ming-Liang SUN Bai-Wang XUE Yi GUO Chang School of Chemistry and Chemical Engineering Southeast UniversityNanjing 211189China Nanjing Red Sun Biochemical Co. Ltd.Nanjing 210000China Southeast University Red Sun Research Center for Intelligent Industry Nanjing 211189China

A new kind of co-crystal of buprofezin(C(16)H(24)FN3OS) with hydrofluoric acid has been prepared through evaporation technique. It crystallizes in the triclinic space group P1, with a = 9.9733(8), b = 10.3460(9), c = 10.5739(12) ?, a = 68.655(9), b = 73.291(9), g = 66.738(8)o, V = 920.34(17) ?~3, Mr = 325.44, Dc = 1.174 g/cm^3, Z = 2, F(000) = 348, m = 0.190 mm^(-1), the final GOOF = 1.042, R = 0.0485 and wR = 0.1167. Single-crystal X-ray diffraction, XRPD, DSC, TGA, Hirshfeld surface analysis, Raman spectroscopy and FT-IR were used to characterize the co-crystal. It has a twodimensional plane structure, and the intermolecular interactions of co-crystal are mainly H–F×××H, H–O×××H and H–O×××H. Thermology study further confirmed that co-crystal has stronger thermal stability and higher melting point than buprofezin, and it has stronger water solubility. The results show that this co-crystal is valuable for the study of residual activity and application effects of buprofezin.

关键词： co-crystal buprofezin X-ray thermal stability

Residue patterns of buprofezin and teflubenzuron in treated peaches

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Journal of Agricultural Chemistry and Environment 2012年第1期1卷 10-14页

作者： Ji-Young Yoon Jae-Hun Park Ye-hoon Han Kyu-Seung Lee Department of Bio-Environmental Chemistry Chungnam National University Daejeon South Korea Syngenta Korea Inc. Seoul South Korea

The biological half-life and final residue levels of buprofezin and teflubenzuron were examined in peaches over a 14-day cultivation period. The residue levels of buprofezin and teflubenzuron were analyzed by chromatographic method with recovery ranging from 84.0% to 96.6%. The biological half-lives of buprofezin andteflubenzuron were 4.88 and 11.49 days at the standard dose, and 4.40 and 10.86 days at a triple dose, respectively. The initial concentration of buprofezin exceeded the maximum residue limit (MRL) set in Korea, but the concentration decreased to below the MRL within 6 days after application. The initial and persisting concentrations of teflubenzuron were all below the prescribed MRL. The final residue levels of buprofezin and teflubenzuron were 0.17 and 0.10?mg·kg﹣1 following a standard single dose, and 0.20 and 0.23 mg·kg﹣1 following a triple dose, respectively. The final re-sidue levels of buprofezin and teflubenzuron were also compared with the good agricultural practices standards of the United States and Italy.

关键词： Biological Half-Life buprofezin Peach Residue Teflubenzuron

新的昆虫生长调节剂buprofezin(Applaud~)的研制

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农药译丛 1988年第3期 32-37页

作者： H.Kanno 亦冰农药公司化学研究中心日本

笔者等对含硫杂环化合物的合成及其生物活性进行了研究。其间,亦对由有机硫化合物(例如二硫化碳和异硫氰酸酯)衍生的中间体的反应性进行了广泛的研究。为了创制新的生物活性化合物,其有效的方法之一,是对已知生物活性化合物进行化学结... 详细信息

笔者等对含硫杂环化合物的合成及其生物活性进行了研究。其间,亦对由有机硫化合物(例如二硫化碳和异硫氰酸酯)衍生的中间体的反应性进行了广泛的研究。为了创制新的生物活性化合物,其有效的方法之一,是对已知生物活性化合物进行化学结构的改进。防治水稻稻瘟病的内吸杀菌剂富士一号(2)对某些植物和害虫都呈现生长调节活性。鉴于富士一号化学结构的新颖性和生物活性的多样性,引起了笔者等人的注意,以它作为新的农药化学结构的先导化合物。

关键词：烷基衍生物 Applaud buprofezin 亚氨基稻褐飞虱褐飞虱全氢二硫戊环一氯甲基化合物富士一号化学结构氨基甲酸若虫同型幼虫硫醇有机硫化合物

Residue and Degradation Dynamic of buprofezin in Citrus and Soil

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Agricultural Science & Technology 2010年第11期11卷 13-16页

作者：李小娇龚道新成应向向仁军张杰伍一红罗杨水污染控制技术湖南省重点实验室湖南长沙410004 湖南农业大学资源环境学院湖南长沙410128 湖南省环境保护科学研究院湖南长沙410004

[Objective] The paper was to detect the residue of buprofezin in citrus and soil.[Method] Gas chromatography（GC）method was used to measure the residue of buprofezin in citrus and soil.[Result] The average recovery rate of buprofezin in entire citrus fruit was 96.17%-97.38%,and the variation coefficient was 6.10%-9.07%;the average recovery rate in pulp was 95.24%-105.46%,and the variation coefficient was 3.30%-6.01%;the average recovery rate in peel was 88.76%-93.64%,and the variation coefficient was 5.12%-6.27%;the average recovery rate in soil was 97.79%-104.3%,and the variation coefficient was 2.45%-9.21%.The degradation dynamics and the final residue results of buprofezin in citrus and soil showed that the degradation half-lives in citrus in Changsha（Hunan）,Hangzhou（Zhejiang）and Guiyang（Guizhou）were 7.65,7.64 and 8.40 d,and the degradation half-lives in soil in three places were 13.75,9.97 and 10.18 d,respectively.[Conclusion] When 25% buprofezin SC watered agent were sprayed in citrus fruits for 2-3 times according to the recommended dose of 166.7-250.0 mg/L,the safe period of buprofezin in citrus could be set as 14 d.

关键词： buprofezin Citrus Soil residue Degradation dynamic

Study on the Degradation Dynamics of Spraying Imidacloprid and buprofezin before and After Mango Bagging

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Agricultural Science & Technology 2016年第9期17卷 2106-2110页

作者：谢德芳李胤均钱程中国热带农业科学院分析测试中心海南海口571101 华中农业大学湖北武汉430070

The four treatments of spraying water the control, spraying before bagging, spraying after bagging, spraying without bagging were conducted by spraying 38% of the mixed suspension agent of imidacloprid and buprofezin, and high performance liquid chromatography （HPLC） method was used to test the imidacloprid and buprofezin residues on mango. The results showed that in 0.05-0.5 mg/kg adding level, the average recovery rate of imidacloprid and buprofezin was 82.6-93.8%, and 101.4-104.2%, respectively, and the relative deviation （RSD） was 1.9-4.5%, 9.3-15.6%, respectively. The minimum detectable amounts of both imidacloprid and buprofezin on mango were 0.01 mg/kg. The half-life periods of imidacloprid under the treatments of spraying before bagging, spraying after bagging and spraying without bagging were 16.74, 6.38, and 8.10 d, respectively, and the half-life periods of buprofezin under the treatments of spraying before bagging and spraying without bagging were 9.72 and 9.23 d, respectively. The residual of buprofezin was low in the treatment of spraying after bagging, and the amount detected in the 3rd day had already below the detectable limit. Bagging treatment reduced the digestion rate of 2 kinds of pesticides in mango, and imidacloprid had strong systemic in mango.

关键词： Imidacloprid buprofezin Mango Dynamic Systemic

Studies on Stimulating Effect of Two Selective Insecticides on the Numbers of Laid Egg by Yellow Rice Borer,Tryporyza incertulas(Walker)and Their Effects on Biochemistry of Rice Plants

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Agricultural Sciences in China 2003年第10期2卷 1121-1129页

作者： WU Jin-cai, WANG Ai-hua, XU Jun-feng, YANG Guo-qin, QIU Hui-min and LI Dong-hu (Department of Plant Protection, Agricultural College, Yangzhou University, Yangzhou 225009, P.R.China ) Department of Plant Protection Agricultural College Yangzhou University Yangzhou 225009 P. R. China

buprofezin and imidacloprid are selective insecticides against Homoptera insects. This paper investigated stimulating effect of the two insecticides on the number of laid eggs by yellow rice borer, Tryporyza incertulas(Walker) of three generations in 20012002. The results showed that the reproductive rate of emergence months during the larvae feeding on the rice plants of Xiushui63 treated with the two insecticides was significantly higher than that of control, indicating that the numbers of laid eggs by the borer was stimulated following buprofezin and imidacloprid applications. However, there was no such effect for the larvae feeding on rice variety Zhendao2 which showed moderate resistance to the insect. In addition, the incidence of stimulating egg laid for the first instar treated with the two insecticides was greater than that for the third instar. Biochemical tests showed that oxalic acid concentration declined, and photosynthetic rate of rice leaves following the two insecticide applications declined significantly compared to control, whereas reducing sugar concentration increased significantly for all other treatments of two varieties except Xiushui63 treated with buprofezin. The level of glutathione-S-transferase varied with rice variety and insecticide.

关键词： buprofezin Imidacloprid Tryporyza incertulas Egg laid Stimulating effect Biochemical mechanism

Evaluation of a Dry Extract System Involving NIR Spectroscopy (DESIR) for Rapid Assessment of Pesticide Contamination of Fruit Surfaces

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American Journal of Analytical Chemistry 2012年第8期3卷 524-533页

作者： Umesh Kumar Acharya Phul Prasad Subedi Kerry Brian Walsh Central Queensland University Institute for Resource Industries and Sustainability Plant Science Group Rockhampton Australia

The dry-extract system for (near) infrared (DESIR) technique was implemented using reflectance near-infrared spec-troscopy in context of detection of contact pesticide residues on fruit. Based on chemical structure, spectra features and regression statistics for PLSR models, a product containing metiram and pyraclostrobin was chosen from six pesticides for further consideration. Regression models based on spectra of dry extracts of aqueous solutions and either acetone or water washes of contaminated fruit were encouraging (RMSECV of approximately 0.03 - 0.06 mg a.i.). This level of analytical performance would support the use of the technique as a rapid screening tool, with suspect samples then subject to the reference GC-MS analysis method. However, the PLSR model performance was poor across populations of fruit, suggesting that matrix changes in the solvent wash between sets of fruit is problematic. Further work is required to establish whether sufficient variation can be built into a calibration set to overcome this issue, without degrading model performance to the point where it loses practical application.

关键词： Apple Mango Tomato Fungicide Insecticide Aero Metiram Pyraclostrobin Octave Prochloraz Penncozeb Mancozeb Amistar Azoxystrobin Applaud buprofezin Lorsban Chlorpyrifos Near Infrared Pesticide