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1推测反应机理第一类:羰基化合物:酸催化引起的重排历程例1OH+OOH+OHOHHOOH-H+O例2COCPh3HCCOHPhPhPh例3OH+OH例4O稀硫酸OH例4历程:2OH+HOHOHOHOHOH-H+HO例5OOHH+OHOH例5历程:H+OHOHOHOOHOHOHOH-H+OHOH第二类:烯类化合物:亲电加成、亲电取代、氧化反应的联合应用例6C=CH2H+C6H5CH33例6历程H+C6H5C6H5亲电取代-H+CH3CH3C6H5C6H5例7H2SO4CH3CH3CH(CH3)2(CH3)3COH+例7历程H3CC(CH3)2CH3CH3-H+H3CC(CH3)2CH3+H2SO4(CH3)3OHCCH3CH3H3C-H+CCH3CH2H3C+HH3CC(CH3)2CCH3CH3H2CCCH3CH3H3C例8CPhPh1.PhCO3H2.H+OPhPh例8机理4CPhPhPhCOOOHCPhPhOH+CPhPhOHCPhPhOHOHPhPhOHPhPh-H+OPhPh例9KMnO4/OH-H+O例9历程:KMnO4/OH--H+OOHHOH+H2OOH重排HOHO第三类酮、酯等碱催化引起的缩合、逆缩合、加成-消去反应例10OONaOC2H5OCOCH3OONaOC2H5OOOO-OCH2-OHOC2H5OCH3O例115OCOCH3CCH31.KOH2.H2OOOHOO例12COH3COOH-OHO例12机理:COH3COOH-COH2COO-OH2OOHO例13OCO2EtCH2CO2HCH2CO2EtCH2CO2Et1.t_BuOK2.H3O+例13HCCO-OEtCH2CO2EtO-OEtEtO2CCH2OOEtO2CCH2O2)-H2OOCO2EtCH2CO2HCH2CO2EtCH2CO2Ett-BuO-H2OOHEtO2CCH2OOH1)H+例146OOC2H5ONaOO例14机理O-OOC2H5OOOONaOC2H5-OCOC2H5O例15BrOBrCO2EtEtONaEtOH例15机理OBrBr-OROBrBrOBr-ORCBr-OORCCBrHOORCOORH第四类醇、醚质子化引起的重排、共振等过程例167CH3COCH3CH3CH2OBsH2OCH3CHCH3CHO例16机理H3CCOCH3CH3CH2OBSH2O邻基参与CH2OCH3CH3CCH3COCH3CCH3H3CHH重排COCHH3CCH3H3CHH3CCHH3CCH=OCH3H2OH3CCHH3CCH=O例17PhCPhOHCCHH2SO4PhCPhCHCHO例17机理PhCPhOHCCHH2SO4-H2OCPhCCHH2OPhPhCPhCCHOHPhCPhCHCHO8例18OO+Br2OOBrOOH+OOHOOHOOHBrBrOOHBrOOHBr-H+OOBr-H+++++
本文标题:推测反应机理2
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