ORGANIC CHEMISTRY LL BUNDLE
4th Edition
ISBN: 9781119761112
Author: Klein
Publisher: WILEY
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Chapter 13, Problem 70IP
Interpretation Introduction
Interpretation: The reason for the formation of the following major product needs to be explained.
Concept Introduction: Grignard reagent can act as a strong base as well as a strong nucleophile. The nature of the reaction depends on the reactant that is if the possibility of an attack of nucleophile or elimination is more.
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A chemist needs an ether to use as a solvent for a reaction and wants to synthesize it in one step from two of the following available reagents: sodium ethoxide, bromomethane, potassium tert-butoxide, and 2-bromo-2-methylpropane.
i) Which combination(s) will give a good yield of an ether? Illustrate, showing the mechanism of the reaction.
ii) Illustrate with a mechanism the reaction of one of the combinations that will not yield an ether?
Write the mechanisms for the following reactions bellow, justifying each substitution position.
Br2, H3O+
གོ་ཤི་ན་ཤི་
H3C CH3
CH3
CH3
Aldehydes and ketones can be halogenated at their a-position by reaction with Cl₂, Br2, or 12, under acidic conditions. Using Br2 under acidic conditions, an intermediate enol is formed which adds
bromine at the a-position. The reaction stops after the addition of one bromine because the electron-withdrawing halogen decreases the basicity of the carbonyl oxygen, making the protonation less
favorable.
Draw curved arrows to show the movement of electrons in this step of the mechanism.
Arrow-pushing Instructions
:OH
:OH
Br-Br
H3C
H3C.
Br
Br
CH₂
H₂
H3C CH3
H3C CH3
2b
Chapter 13 Solutions
ORGANIC CHEMISTRY LL BUNDLE
Ch. 13.2 - Prob. 1LTSCh. 13.2 - Prob. 1PTSCh. 13.2 - Prob. 2PTSCh. 13.2 - Prob. 3ATSCh. 13.4 - Prob. 4CCCh. 13.5 - Prob. 2LTSCh. 13.5 - Prob. 5PTSCh. 13.5 - Prob. 6ATSCh. 13.5 - Prob. 7CCCh. 13.5 - Prob. 8CC
Ch. 13.5 - Prob. 9CCCh. 13.6 - Prob. 10CCCh. 13.7 - Prob. 11CCCh. 13.7 - Prob. 12CCCh. 13.8 - Prob. 3LTSCh. 13.8 - Prob. 13PTSCh. 13.8 - Prob. 14ATSCh. 13.9 - Prob. 15CCCh. 13.10 - Prob. 4LTSCh. 13.10 - Prob. 17ATSCh. 13.10 - Prob. 5LTSCh. 13.10 - Prob. 19ATSCh. 13.11 - Prob. 20CCCh. 13.12 - Prob. 6LTSCh. 13.12 - Prob. 7LTSCh. 13 - Prob. 26PPCh. 13 - Prob. 27PPCh. 13 - Prob. 28PPCh. 13 - Prob. 29PPCh. 13 - Prob. 30PPCh. 13 - Prob. 31PPCh. 13 - Prob. 32PPCh. 13 - Prob. 33PPCh. 13 - Prob. 34PPCh. 13 - Prob. 35PPCh. 13 - Prob. 36PPCh. 13 - Prob. 37PPCh. 13 - Prob. 38PPCh. 13 - Prob. 39PPCh. 13 - Prob. 40PPCh. 13 - Prob. 41PPCh. 13 - Prob. 42PPCh. 13 - Prob. 43PPCh. 13 - Prob. 44PPCh. 13 - Prob. 45PPCh. 13 - Prob. 46ASPCh. 13 - Prob. 47ASPCh. 13 - Prob. 48ASPCh. 13 - Prob. 49ASPCh. 13 - Prob. 50ASPCh. 13 - Prob. 51ASPCh. 13 - Prob. 52ASPCh. 13 - Prob. 53ASPCh. 13 - Prob. 54IPCh. 13 - Prob. 59IPCh. 13 - Prob. 60IPCh. 13 - Prob. 61IPCh. 13 - Prob. 62IPCh. 13 - Prob. 63IPCh. 13 - Prob. 64IPCh. 13 - Prob. 65IPCh. 13 - Prob. 66IPCh. 13 - Prob. 69IPCh. 13 - Prob. 70IPCh. 13 - Prob. 71IPCh. 13 - Prob. 72IPCh. 13 - Prob. 73IPCh. 13 - Prob. 74IPCh. 13 - Prob. 77CPCh. 13 - Prob. 79CPCh. 13 - Prob. 80CP
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