CAS: 123312-89-0; Pymetrozine

欧盟法规

[欧盟农药活性物质

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CAS号100-54-9 3-氰基吡啶 | CAS号7440-02-0 镍 | CAS号931-86-2 5-氮杂胞嘧啶

在 Potassium Carbonate体系中,用 甲醇 用作溶剂,化学反应 5.0H,以85%的收率获得吡蚜酮
参考文献:一种吡蚜酮的制备方法
标题:一种吡蚜酮的制备方法
摘要:本发明公开了一种吡蚜酮的制备方法,旨在提供一种吡蚜酮反应路线短,环境污染小,工艺操作简单的合成方法;其步骤:1)以碳酸二甲酯为原料,与水合肼发生肼解反应得到卡巴肼;2)卡巴肼与烟醛发生缩合反应得到(E)‑n'‑(吡啶‑3‑基亚甲基)肼碳酰肼;3)(E)‑n'‑(吡啶‑3‑基亚甲基)肼碳酰肼与氯丙酮发生缩合反应得到(E)‑n'‑(Z)‑1‑氯丙‑2‑亚基)‑2‑(吡啶‑3‑基亚甲基)肼基‑1‑碳酰肼;4)(E)‑n'‑(Z)‑1‑氯丙‑2‑亚基)‑2‑(吡啶‑3‑基亚甲基)肼基‑1‑碳酰肼在碱性条件下成环得到吡蚜酮;属于有机合成技术领域.

专利信息

专利号:WO-2025056767-A1
优先权日:2023-09-15
标题 :Process for the preparation of enantiomerically enriched aliphatic amines
发明人：BOU HAMDAN FARHAN; GODINEAU EDOUARD; SMEJKAL TOMAS; DUMEUNIER RAPHAEL; BOUSSEMGHOUNE MOHAMED ABDELOUAHAB; BLUM MATHIAS
权利人:SYNGENTA CROP PROTECTION AG
摘要:The present invention relates to a process for the preparation of enantiomerically enriched cyclobutylamines of formula (I) from α-tertiary cyclobutanones and reacting said enantiomerically enriched cyclobutylamines to enantiomerically enriched cyclobutylamides. Such compounds are useful intermediates in the synthesis of microbiocidal thiazole compounds.

专利号:US-2016073631-A1
优先权日:2013-03-04
标 题 :Process for the preparation of dihydropyrrole derivatives
发明人：EL QACEMI MYRIEM; SMITS HELMARS; CASSAYRE JEROME YVES; MULHOLLAND NICHOLAS PHILLIP; RENOLD PETER; GODINEAU EDOUARD; PITTERNA THOMAS
权利人:SYNGENTA PARTICIPATIONS AG; SYNGENTA LTD
摘要:The present invention provides stereoselective processes for the preparation of compounds of formula (I) n n n n n n n n n n n n wherein n P is phenyl, naphthyl, a 6-membered heteroaryl group containing one or two nitrogen atoms as ring members, or a 10-membered bicyclic heteroaryl group containing one or two nitrogen atoms as ring members, and wherein the phenyl, naphthyl and heteroaryl groups are optionally substituted; n R 1 is chlorodifluoromethyl or trifluoromethyl; n R 2 is optionally substituted aryl or optionally substituted heteroaryl; n n is 0 or 1; n including the process comprising n (a-i) reacting a compound of formula II n n n n n n n n n n n n n n n n wherein P, R 1 and R 2 are as defined for the compound of formula I; n with nitromethane in the presence a chiral catalyst to give a compound of formula III n n n n n n n n n n n n n n n n wherein P, R 1 and R 2 are as defined for the compound of formula I; and n (a-ii) reductively cyclising the compound of formula III to give the compound of formula I. n n n n n The invention also provides intermediates useful for processes for the synthesis of compounds of formula (I).

专利号:US-9233920-B2
优先权日:2010-06-11
标题 :Process for the preparation of dihydropyrrole derivatives
发明人：EL QACEMI MYRIEM; SMITS HELMARS; CASSAYRE JEROME YVES; MULHOLLAND NICHOLAS PHILLIP; RENOLD PETER; GODINEAU EDOUARD; PITTERNA THOMAS
权利人:EL QACEMI MYRIEM; SMITS HELMARS; CASSAYRE JEROME YVES; MULHOLLAND NICHOLAS PHILLIP; RENOLD PETER; GODINEAU EDOUARD; PITTERNA THOMAS; SYNGENTA PARTICIPATIONS AG; SYNGENTA LTD
摘要:The present invention provides stereoselective processes for the preparation of compounds of formula (I) wherein P is phenyl, naphthyl, a 6-membered heteroaryl group containing one or two nitrogen atoms as ring members, or a 10-membered bicyclic heteroaryl group containing one or two nitrogen atoms as ring members, and wherein the phenyl, naphthyl and heteroaryl groups are optionally substituted; R 1 is chlorodifluoromethyl or trifluoromethyl; R 2 is optionally substituted aryl or optionally substituted heteroaryl; n is 0 or 1; including the process comprising (a-i) reacting a compound of formula II wherein P, R 1 and R 2 are as defined for the compound of formula I; with nitromethane in the presence a chiral catalyst to give a compound of formula III Wherein P, R 1 and R 2 are as defined for the compound of formula I; and (a-ii) reductively cyclizing the compound of formula III to give the compound of formula I. The invention also provides intermediates useful for processes for the synthesis of compounds of formula (I).

专利号:US-10906880-B2
优先权日:2016-01-26
标题:Kind of isothiazole oxime ether-containing strobilurin derivatives and its preparation methods and application
发明人：FAN ZHIJIN; CHEN LAI; GUO XIAOFENG; ZHU YUJIE; QIAN XIAOLIN; MA LIUYONG; ZHANG NAILOU; WANG HAIXIA; ZHANG ZHIMING; XU JINGHUA; SONG YINQI
权利人:UNIV NANKAI
摘要:The present invention is that provided a synthesis method of a series of isothiazole oxime ether containing strobilurin derivatives IV. The present invention relates to 3,4-dichloroisothiazolyl oxime ether strobilurin derivatives, and their chemical structural formula is as shown by IV. n n n n n n n n n n The invention discloses the structural formula of the above compound, the synthesis method and the use as an insecticide, a fungicide, an anti-plant virus agent, and an agriculturally acceptable auxiliary or synergist and a commercial insecticide. The use of a fungicide, an anti-plant virus agent and an acaricide in combination for controlling agricultural, forestry, horticultural plant pests, diseases, virus diseases and preparation methods.

专利号:US-2007232495-A1
优先权日:2006-03-24
标题:Compositions and methods to add value to plant products, increasing the commercial quality, resistance to external factors and polyphenol content thereof
发明人：NAPPA ALVARO O; LORENZINI FELIPE C; SANHUEZA ANDRES L
权利人:NAPPA ALVARO O; LORENZINI FELIPE C; SANHUEZA ANDRES L
摘要:The invention is related to compositions and methods that naturally protect plant tissues against ultraviolet radiation and temperature, thus giving protection against sunburn to plants, plant parts, fruits and/or flowers during their development. The invention is also related to compositions and methods to naturally improve the color of plants, plant parts, fruits and/or flowers by inducing the natural synthesis of flavonoids and anthocyanins present in plants. Likewise, the present invention is directed to improving the nutritional value of plants, plant parts, fruits and/or flowers by increasing the normal levels of polyphenolic compounds, especially flavonoids, present therein. Additionally, the present invention is related to compositions and methods that give more resistance to plants, plant parts, fruits and/or flowers against pathogens as bacteria and fungi. Finally, the present invention is related to plants, plant parts, fruits, flowers and/or propagating material treated with the compositions described in the present document.

专利号:WO-2019218027-A1
优先权日:2018-05-18
标题:Core-shell particles
发明人：MEANEY SHANE; TABOR RICHARD; FOLLINK BART
权利人:UNIV MONASH
摘要:The application relates to a core-shell particle having a) a cross-linked polyelectrolyte core, and b) a silica-based shell having covalently bound thereto one or more groups of formula –R–F, wherein R is an organic group and F is a functional moiety. The application also relates to a method of synthesis of a core-shell particle, the method comprising the steps of: a) providing a cross-linked polyelectrolyte core template, b) coating the core template with a silica-based shell, and c) introducing one or more groups of formula –R–F covalently bound to the silica-based shell, wherein R is an organic group and F is a functional moiety.