CAS: 76350-90-8; (2-Methyl-[1,1'-Biphenyl]-3-yl)Methanol

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CAS号502483-86-5 4-phenyl-1,3-di... | CAS号576-23-8 3-溴邻二甲苯 | CAS号127168-82-5 1-溴-2,3-双(溴甲基)苯 | CAS号115363-11-6 2-methyl-3-phen...

1-溴-2,3-双(溴甲基)苯置于钯 四丁基氢氧化铵,水,Lithium体系中,用 四氢呋喃,1,4-二氧六环 作为反应溶剂,化学反应 3.5H,反应生成 2-甲基-3-苯基苯甲醇
参考文献:Regiochemistry In The Reductive Opening Of Phthalan Derivatives
标题:Regiochemistry In The Reductive Opening Of Phthalan Derivatives
摘要:The Lithiation Of Phthalan Derivatives 4,9 And 12 With An Excess Of Lithium In The Presence Of A Catalytic Amount Of 4,4'-Ditert-Butylbiphenyl (Dtbb) In Thf At-78 Degrees C Gives Dianionic Intermediates 5,10 And 13,Respectively,Which By Reaction With Different Electrophiles [h2O,Tau-Bucho,Me2Co,(Eto)(2)Co] At The Same Temperature,Followed By Hydrolysis,Leads To Regioselective Functionalised Naphthalenes 7,And Biphenyls 11 And 14. The Reductive Opening Takes Place With High Or Total Regioselectivity And Can Be Explained Considering The Electron Density In The Dianion Or In The Radical Anion,Which Are Formed Previous To The Carbon-Oxygen Bond Excision. The Lithiation Of The Dihydrofurophthalan Derivative 18 With The Same Reaction Mixture But At Higher Temperature (0 Degrees C) Leads To Intermediates 19 And 20,Resulting From A Single And A Double Reductive Cleavage,Respectively,Which After Addition Of H2O And Benzaldehyde As Electrophiles Gives A Mixture Of Compounds 21 And 22. (C) 2007 Elsevier Ltd. All Rights Reserved.
DOI:10.1016/j.Tetlet.2007.03.069

专利信息

专利号:US-4879302-A
优先权日:1986-10-30
标题 :Certain oximino-cyclopropane carboxylates having insecticidal activity
发明人：TESSIER JEAN; DEMOUTE JEAN-PIERRE; CADIERGUE JOSEPH
权利人:ROUSSEL UCLAF
摘要:All possible stereoisomeric forms and mixtures thereof of a compound of the formula I wherein A is selected from the group consisting of hydrogen, optionally unsaturated alkyl and haloalkyl of 1 to 18 carbon atoms, optionally substituted with aryl or a heterocyclic and optionally interrupted by -O- or -S-, optionally unsaturated cycloalkyl of 3 to 18 carbon atoms, aryl of 6 to 14 carbon atoms and heterocyclic, B is selected from the group consisting of hydrogen, alkyl of 1 to 18 carbon atoms optionally interrupted by -S- or -O- and optionally substituted with at least one member of the group consisting of halogen, -OH, alkoxy of 1 to 8 carbon atoms, -SH, thioalkoxy of 1 to 8 carbon atoms, -NO2 and -CN and R is selected from the group consisting of optionally unsaturated alkyl of 1 to 18 carbon atoms and residue of an alcohol used in the synthesis of pyrethrinoid esters having pesticidal activity.

专利号:US-7825149-B2
优先权日:2006-01-19
标 题 :Substituted imidazoles
发明人：CHUBB NATHAN ANTHONY LOGAN; COX MARK ROGER; DAUVERGNE JEROME SEBASTIEN; EWIN RICHARD ANDREW; LAURET CHRISTELLE
权利人:PFIZER LTD
摘要:This invention relates to a range of alpha substituted 2-benzyl substituted imidazole compounds and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.

专利号:CN-104628569-A
优先权日:2013-11-15
标 题:A kind of production method of bifenthrin with clean synthesis process

专利号:CN-104628568-A
优先权日:2013-11-15
标 题:A kind of production method of bifenthrin with clean synthesis process