EBK ORGANIC CHEMISTRY-PRINT COMPANION (
4th Edition
ISBN: 9781119776741
Author: Klein
Publisher: WILEY CONS
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Chapter 7.3, Problem 6ATS
Interpretation Introduction
Interpretation: The synthesis of Aldingenin C involves the conversion of the compound to 2 via the intramolecular
Concept introduction:
A molecule can have both nucleophilic and electrophilic centers. An electrophilic center must be electron-deficient and can form a bond with a nucleophile. Here the nucleophile is an electron-rich species that can react with cation or any other electrophile. The
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The following reaction involves two sequential Heck reactions. Draw structural formu-
las for each organopalladium intermediate formed in the sequence and show how the
final product is formed. Note from the molecular formula given under each structural
formula that this conversion corresponds to a loss of H and I from the starting material.
Acetonitrile, CH,CN, is the solvent.
1% mol Pd(OAc),
4% mol Ph,P
CH,CN
C4H171
C4H16
H₂C
ཏཱཏི 1 ནི
OH
1. Br2, PBг3
2. H₂O
H3C
OH
Br
The a-bromination of carbonyl compounds by Br2 in acetic acid is limited to aldehydes and ketones because acids, esters, and amides don't enolize to a sufficient extent. Carboxylic acids, however, can
be a-brominated by first converting the carboxylic acid to an acid bromide by treatment with PBr3. Following enolization of the acid bromide, Br2 reacts in an a-substitution reaction. Hydrolysis of the
acid bromide completes the reaction.
Draw curved arrows to show the movement of electrons in this step of the mechanism.
Arrow-pushing Instructions
:0:
H3C
Br
Br
+
:::OH2
Br
H₂O
H3C
Br
за
b) Listed below are several hypothetical nucleophilic substitution reactions.
None is synthetically useful because the product indicated is not formed at an
appreciable rate. In each case provide an explanation for the failure of the
reaction to take place as indicated.
OMe
HO
+ OMe
+ OH
HO
+ CH;
OH
Chapter 7 Solutions
EBK ORGANIC CHEMISTRY-PRINT COMPANION (
Ch. 7.2 - Prob. 1CCCh. 7.3 - Prob. 2CCCh. 7.3 - Prob. 1LTSCh. 7.3 - Prob. 3PTSCh. 7.3 - Prob. 4ATSCh. 7.3 - Prob. 2LTSCh. 7.3 - Prob. 5PTSCh. 7.3 - Prob. 6ATSCh. 7.3 - Prob. 7CCCh. 7.4 - Prob. 8CC
Ch. 7.5 - Prob. 9CCCh. 7.6 - Prob. 10CCCh. 7.6 - Prob. 11CCCh. 7.7 - Prob. 12PTSCh. 7.7 - Prob. 13PTSCh. 7.7 - Prob. 14ATSCh. 7.7 - Prob. 4LTSCh. 7.7 - Prob. 16ATSCh. 7.7 - Prob. 17CCCh. 7.7 - Prob. 18CCCh. 7.7 - Prob. 5LTSCh. 7.7 - Prob. 19PTSCh. 7.7 - Prob. 20ATSCh. 7.8 - Prob. 21PTSCh. 7.8 - Prob. 22ATSCh. 7.8 - Prob. 23CCCh. 7.8 - Prob. 24CCCh. 7.8 - Prob. 25CCCh. 7.8 - Prob. 26CCCh. 7.8 - Prob. 27CCCh. 7.9 - Prob. 7LTSCh. 7.9 - Prob. 29ATSCh. 7.9 - Prob. 30ATSCh. 7.9 - Prob. 31ATSCh. 7.10 - Prob. 32CCCh. 7.10 - Prob. 33CCCh. 7.10 - Prob. 34CCCh. 7.11 - Prob. 8LTSCh. 7.11 - Prob. 35PTSCh. 7.11 - Prob. 36PTSCh. 7.11 - Prob. 37ATSCh. 7.11 - Prob. 9LTSCh. 7.11 - Prob. 40PTSCh. 7.11 - Prob. 41ATSCh. 7.12 - Prob. 42CCCh. 7.12 - Prob. 43CCCh. 7.12 - Prob. 44CCCh. 7.12 - Prob. 45CCCh. 7.12 - Prob. 46CCCh. 7 - Prob. 47PPCh. 7 - Prob. 48PPCh. 7 - Prob. 49PPCh. 7 - Prob. 50PPCh. 7 - Prob. 51PPCh. 7 - Prob. 52PPCh. 7 - Prob. 53PPCh. 7 - Prob. 54PPCh. 7 - Prob. 55PPCh. 7 - Prob. 56PPCh. 7 - Prob. 57PPCh. 7 - Prob. 58PPCh. 7 - Prob. 59PPCh. 7 - Prob. 60PPCh. 7 - Prob. 61PPCh. 7 - Prob. 64PPCh. 7 - Indicate whether you would use NaOEt or tBuOK to...Ch. 7 - Prob. 68PPCh. 7 - Draw a plausible mechanism for each of the...Ch. 7 - Prob. 70PPCh. 7 - Prob. 71PPCh. 7 - Prob. 72PPCh. 7 - Prob. 73PPCh. 7 - Prob. 74PPCh. 7 - Prob. 77PPCh. 7 - Prob. 78PPCh. 7 - Prob. 81ASPCh. 7 - Prob. 87ASPCh. 7 - Prob. 90ASPCh. 7 - Prob. 91IPCh. 7 - Prob. 92IPCh. 7 - Prob. 93IPCh. 7 - Prob. 94IPCh. 7 - Prob. 95IPCh. 7 - Prob. 96IPCh. 7 - Prob. 97IPCh. 7 - Prob. 98IPCh. 7 - Prob. 99IPCh. 7 - Prob. 100IPCh. 7 - Prob. 101IPCh. 7 - Prob. 102IPCh. 7 - Prob. 103IPCh. 7 - Prob. 105IPCh. 7 - Prob. 106IPCh. 7 - Prob. 107IPCh. 7 - Prob. 109IPCh. 7 - Prob. 110CPCh. 7 - Prob. 112CPCh. 7 - Prob. 114CP
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