欢迎来到天天文库
浏览记录
ID:37204195
大小:240.00 KB
页数:11页
时间:2019-05-19
《上海交通大学试卷(B卷)》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、上海交通大学试卷(B卷)2006至2007年第1学期班级号:____________________学号:__________________姓名:_________课程名称:OrganicChemistryII(Jan.26,2007)Youhave120minutestoanswerallofthefollowing10questions.Thetotalvalueofthemis100points.GoodLuck!1.(5points)Inyourmind,whatarethefiveke
2、ypointsyoulearnedinorganicchemistry?Why?(10points)Whatarethedifferencesbetweenarylhalidesandalkylhalidesinthesubstitutionreactions?Why?RX:SN1andSN2ArX:SNAraddition-eliminationElimination–addition:BengyneEliminationadditionExplaination:a)b)sp2C-Xshorte
3、randstrongerresonance(10points)Howaboutthereactionofphenolwithconcentratedsulfuricacid?Explainitsmechanismandperformanceindetail.AnswerMachanism:electrophilicaromaticsubstitutiona)b)c)a)(10points)Whatarethenamedreactionsasfollows?(Giveexamples)(a)TheD
4、iels-Alderreaction(b)TheFriedel-Craftsalkylation(c)TheClaisencondensation(d)TheMichaeladdition(11points)Whatisaldolreaction?Giveitsmechanismsinthepresenceofacidandbaserespectively?AnswerAcid:Base(a)(b)(c)(10points)Outlinearoutetopreparethefollowingcom
5、poundfrombenzeneandotherneededreagents:Answer(10points)Preparationofthefollowingcompoundfromethylene.Answer(9points)Givethreedifferentmethodsforconvertingcarbonylgroupsofaldehydesandketonesto–CH2-groups.answera)TheClemmensenReductionb)c)Wolff-Kishnerr
6、eduction(15points)Explainthefollowingitemsusingexamples:(a)Markovnikovadditionvsanti-Markovnikovaddition(b)Zaitevrulevs.Hofmannrule(c)OxidationvsreductionAnswera)MarkovnikovadditionAnti-Markovnikovadditionb)ZaitevruleToformthemorestablealkeneHofmannru
7、lesToformtheleastsubstitutedalkenec)Oxidation:toincreaseitsoxygencontent(decreaseitsHcontent)oritscontentofanyelementmoreelectronegativethancabon.Reduction:theoppositeofoxidation(10points)DescribetheimpotanceandlimitationsofGrinardreagentsinorganicsyn
8、thesis.AnswerLimitations:sensitivetoH2Oand–OH,-NH2,-NHR,-COOH,-SO3H,-SH,-CH(acid)and
此文档下载收益归作者所有