📜间苯氧基苯甲醛置于吡啶,盐酸体系中,用 四氢呋喃,二氯甲烷 用作溶剂,化学反应 1.5H,反应生成甲氰菊酯 参考文献:Development Of An Enzyme-Linked Immunosorbent Assay For The Detection Of The Pyrethroid Insecticide Fenpropathrin 标题:Development Of An Enzyme-Linked Immunosorbent Assay For The Detection Of The Pyrethroid Insecticide Fenpropathrin 摘要:A Competitive Enzyme-Linked Immunosorbent Assay (Elisa) Was Developed For The Quantitative Detection Of Fenpropathrin [(Rs)-Alpha-Cyano-3-Phenoxybenzyl-2,2,3,3-Tetramethylcyclopropanecarboxylate]. Polyclonal Antisera Were Isolated From Rabbits Immunized With Two Different Fenpropathrin Hapten Conjugates. One Hapten Contained An Amino Function; The Other Contained A Carboxyl Group For Conjugation To Carrier Proteins. Mollusk Hemocyanins,Thyroglobulin,And Fetuin Were Used As Carrier Proteins. The Antisera Varied Greatly In Their Affinities For Fenpropathrin. A Homologous Assay System Using The Coating Antigen Format Was The Most Sensitive. The Ic50 For Fenpropathrin Was 20 Mu G/l,And The Lower Detection Limit Was 2.5 Mu G/l. Pyrethroids,Such As Phenothrin,Permethrin,Resmethrin,Fenvalerate,Deltamethrin,Cyfluthrin,And Cypermethrin,And The Pyrethroid Metabolites,3-Phenoxybenzoic Acid And Fenpropathrin Acid,Did Not Cross-React Significantly In This Assay. Ten Percent Acetone Or Methanol And A Ph Of 4 Were Determined To Be Optimum Assay Conditions. Various Cationic,Anionic,And Nonionic Detergents Had No Significant Effect On The Assay. Doi:10.1021/jf9710847
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-10202620-B2 优先权日:2014-05-16 标 题:Synthesis of olefinic alcohols via enzymatic terminal hydroxylation 发明人:COELHO PEDRO; CHEN MIKE M Y; MEINHOLD PETER; CHO CATHERINE MEE-HIE; BUI VU; HEEL THOMAS 权利人:PROVIVI INC 摘要:In certain aspects, the present invention provides methods for producing terminally hydroxylated alkenes and alkynes by contacting an unsaturated or saturated hydrocarbon substrate with a hydroxylase enzyme. Exemplary terminal hydroxylases useful for carrying out the methods of the invention exhibit strong selectivity towards one terminal carbon of a hydrocarbon substrate and include, but are not limited to, non-heme diiron alkane monooxygenases, cytochromes P450 (e.g., cytochromes P450 of the CYP52 and CYP153 family), as well as long chain alkane hydroxylases. In some embodiments, the terminally hydroxylated alkene or alkyne is further converted to a terminal alkenal. In certain embodiments, terminally hydroxylated alkenes and alkynes are useful as insect pheromones which modify insect behavior. In other embodiments, terminally hydroxylated alkenes and alkynes are useful intermediates for producing pheromones via acetylation or oxidation of the alcohol moiety.
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-12344573-B2 优先权日:2018-07-16 标题:Synthesis of straight-chain lepidopteran pheromones through one- or two-carbon homologation of fatty alkenes 发明人:WAMPLER KEITH M; LEE CHOON WOO; ROZZELL DAVID 权利人:PROVIVI INC 摘要:Methods for the preparation of alkenes including insect pheromones are described. The methods include homologation reactions employing reagents such as 1,3-diesters, epoxides, cyanoacetates, and cyanide salts for elongation of starting materials and intermediates by one or two carbon atoms. The alkenes include insect pheromones useful in a number of agricultural applications.
专利号:US-11155505-B2 优先权日:2017-02-17 标题 :Synthesis of pheromones and related materials via olefin metathesis 发明人:WAMPLER KEITH M; BUI VU; ROZZELL DAVID; COELHO PEDRO; FLORUTI ARTHUR; ONDI LEVENTE; MEHDI HASAN; EROS GABOR 权利人:PROVIVI INC 摘要:Methods for preparation of olefins, including 8- and 11-unsaturated monoenes and polyenes, via transition metathesis-based synthetic routes are described. Metathesis reactions in the methods are catalyzed by transition metal catalysts including tungsten-, molybdenum-, and ruthenium-based catalysts. The olefins include insect pheromones useful in a number of agricultural applications.
1: Ren D, Sun C, Ma G, Yang D, Zhou C, Xie J, Li Y. Determination of Pyrethroids in Tea Brew by GC-MS Combined with SPME with Multiwalled Carbon Nanotube Coated Fiber. Int J Anal Chem. 2018 Mar 8;2018:8426598. doi: 10.1155/2018/8426598. eCollection 2018. 2: Qian H, Hu L, Liu C, Wang H, Gao H, Zhou W. Determination of four pyrethroid insecticides in water samples through membrane emulsification-assisted liquid-liquid microextraction based on solidification of floating organic droplets. J Chromatogr A. 2018 Apr 13. pii: S0021-9673(18)30464-3. doi: 10.1016/j.chroma.2018.04.031. [Epub ahead of print] doi: 10.3389/fphys.2018.00314. eCollection 2018. 4: Xiao JJ, Duan JS, Wu YC, Shi YH, Fang QK, Liao M, Hua RM, Cao HQ. Dissipation and Migration of Pyrethroids in Auricularia polytricha Mont. from Cultivation to Postharvest Processing and Dietary Risk. Molecules. 2018 Mar 29;23(4). pii: E791. doi: 10.3390/molecules23040791. doi: 10.1007/s00604-018-2672-2. doi: 10.3389/fmicb.2018.00098. eCollection 2018.
合成参考文献
摘要:Japan Pesticide Information., (38)(21), 1981 摘要:Farm Chemicals Handbook., -(C137), 1991 摘要:Crosby DG; pp. 194-213 in Pyrethrum Flowers. Casida JE, Quidstad GB, eds (1995) 摘要:U.S. Environmental Protection Agency/Office of Prevention, Pesticides, and Toxic Substances. Reigart, J.R., Roberts, J.R. Recognition and Management of Pesticide Poisonings. 5th ed. 1999. EPA Document No. EPA 735-R-98-003, and available in electronic format at: 摘要:Mackison, F. W., R. S. Stricoff, and L. J. Partridge, Jr. (eds.). NIOSH/OSHA - Occupational Health Guidelines for Chemical Hazards. DHHS(NIOSH) Publication No. 81-123 (3 VOLS). Washington, DC: U.S. Government Printing Office, Jan. 1981., p. 1