che 230-001 organic chemistry：车230-001有机化学

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1、CHE230-001OrganicChemistryExam2(9totalpagesincludingperiodictable)-6-CoverSheet!(MAKEUPEXAM)Writeyournamelegiblyonthelinebelow.CHE230-001OrganicChemistryExam2(9totalpagesincludingperiodictable)-6-_____________________________________________________Exam2,Monday,October

2、23-TuesdayOct24,2000Name:______________________StudentIDNo:____________First:Youareallowedtohaveawritingutensil,acalculatorandmolecularmodelsetatyourseat.Pleaseputawayallothermaterials.Second:Placeyourstudentidentificationonyourdesk.Aproctorwillcomearoundtocheckeveryon

3、e’sID.Isyournameandnumberonyourtest?Third:Quicklyreadthroughtheentireexam.Yourgoal,asalways,istoscoreasmanypointsaspossible.Donotwastetimeonproblemsthatyoucan’tdoifthereareeasyquestions.Fourth:Itiscriticallyimportantthatyouranswersbewritteninaclear,unambiguousmanner.An

4、swersinwhichyourintentionsareunclearwillnotreceivecredit.SHOWYOURWORK!Fifth:READTHEINSTRUCTIONSFOREACHPROBLEM.answereachquestionYouhaveuntil6:50tocompletethisexam.Therearenoextensions;budgetyourtime.ProblemNumberPointspossibleScore1.10_____2.15_____3.10_____4.15_____5.

5、15_____6.15_____7.10_____8.10_____Total100_____CHE230-001OrganicChemistryExam2(9totalpagesincludingperiodictable)-6-1.(10pts.)Rankthefollowingmoleculesbytheirenergyofhydrogenation.LabelthestartingmaterialofthehydrogenationreactionthathasthemostnegativeDG1,thenextmostne

6、gativeDGlabel2etc.AnexampleofahydrogenationreactionisCH2=CH2+H2-->CH3-CH3Putyouranswersonthelinebelow.A___B___C___D___E___F___2.Whencompound2xbelowistreatedwithtriethylamine(abase)itloosesaprotonandbecomesconjugatebase2y.When2yistreatedwithlithiumdiethylamide(amuchstro

7、ngerconjugatebasethantriethylamine)2yloosesanotherprotonandbecomesconjugatebase2z.a.(5pts)Drawthestructureof2yandlabelit.b.(5pts)Drawthestructureof2zandlabelitc.(5pts)Explainyouranswer,whyisonesiteeasiertodeprotonate?____________________________________________________

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