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Tuesday, December 24, 2013

Psychsim 5

Chapter 10 Worksheet 1. Name the subatomic particle below, including any stereochemistry. urinate the product(s) of an SN2 response with this and I- as the nucleophile. Now draw the product(s) of an SN1 reaction with the maestro molecule and I- as the nucleophile. Finally, draw complete mechanisms for these both(prenominal) reactions. [pic] (S) 2-Bromohexane SN2 mechanism [pic] SN1 Mechanism Step 1 [pic]Step 2 [pic] 2. line of prevail #28, p393 a. OH- is a break away nucleophile, so it is faster b. I- is a collapse exit grp, so it is faster c. NH3 is a better base, and t presentfore a better nucleophile than water, so it is faster d. DMSO is a polar, aprotic solvent, allowing a naked nucleophile to react faster e. here is a case where either answer would be assort, providing it is correctly confirm. peerless could say that the polar, aprotic solvent ethoxyethane would non entomb the nucleophile, reservation the react ion go faster (as per DMSO, above). But because ammonia isnt a great nucleophile, there is another musing (explained on p391). If neither of the reactants is charged (methyl bromide and ammonia ar both uncharged), the more than polar solvent is better adequate to stabilise your SN2 transition state. This is one of those cases where there are two things to consider, and distributively will give a different answer.
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At our level, it is not dire that we know which one of these things has more lading nether which set of conditions, so either answer would be correct as long as you have justified your answer. 3. For severally of the following co! nditions, indicate whether the substitution reaction is more probably to be SN1 or SN2?. a. nucleophile is OH-SN2- good nucleophile b. nucleophile is H2OSN1- despicable nucleophile c. solvent is nonpolarSN2- no carbocation possible d. alkyl group halide (reactant) is CH3BrSN2-Leaving group on methyl C e. alkyl halide is primarySN2-Leaving group on 1° C f. alkyl halide is tertiarySN1-Leaving group on 3° C g. leaving...If you command to arrest a full essay, order it on our website: OrderCustomPaper.com

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