CHEMISTRY:STRUCTURE+PROP.-W/MOD.ACCESS
2nd Edition
ISBN: 9780134783093
Author: Tro
Publisher: PEARSON
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Chapter 20, Problem 12E
Interpretation Introduction
Interpretation:
“ Magic numbers” should be identified.
Concept introduction:
In any nuclide, neutron to proton ratio (N/Z) is an important factor in determining the overall stability of that particular nuclide. There are certain number of protons and neutrons that give an additional stability to a nuclide. Those number of protons and neutrons are known as magic numbers. There are few isotopes that have magic numbers for both protons and neutrons; this is known as double magic numbers.
These magic numbers are:
• proton: 2, 8, 20, 28, 50, 82, 114
• neutron: 2, 8, 20, 28, 50, 82, 126, 184
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Answer
2. Provide a clear arrow-pushing mechanism for the following reactions. Do not skip proton
transfers, do not combine steps, and make sure your arrows are clear enough to be interpreted
without ambiguity.
a.
CH3
Ph
OEt
هد
Ph
CH3
Hint: the species on the left is an ynolate, which behaves a lot like an enolate.
b.
CH3
H3C
CH3
CH3
H3C
an unexpected product,
containing a single 9-
membered ring
the expected product,
containing two fused rings
H3C-I
(H3C)2CuLi
an enolate
Chapter 20 Solutions
CHEMISTRY:STRUCTURE+PROP.-W/MOD.ACCESS
Ch. 20 - Prob. 1ECh. 20 - Prob. 2ECh. 20 - Prob. 3ECh. 20 - Prob. 4ECh. 20 - Prob. 5ECh. 20 - Prob. 6ECh. 20 - Prob. 7ECh. 20 - Prob. 8ECh. 20 - Prob. 9ECh. 20 - Prob. 10E
Ch. 20 - Prob. 11ECh. 20 - Prob. 12ECh. 20 - Prob. 13ECh. 20 - Prob. 14ECh. 20 - Prob. 15ECh. 20 - Prob. 16ECh. 20 - Prob. 17ECh. 20 - Prob. 18ECh. 20 - Prob. 19ECh. 20 - Prob. 20ECh. 20 - Prob. 21ECh. 20 - Prob. 22ECh. 20 - Prob. 23ECh. 20 - Prob. 24ECh. 20 - Prob. 25ECh. 20 - Prob. 26ECh. 20 - Prob. 27ECh. 20 - Prob. 28ECh. 20 - Prob. 29ECh. 20 - Prob. 30ECh. 20 - Prob. 31ECh. 20 - Prob. 32ECh. 20 - Prob. 33ECh. 20 - Prob. 34ECh. 20 - Prob. 35ECh. 20 - Prob. 36ECh. 20 - Prob. 37ECh. 20 - Prob. 38ECh. 20 - Prob. 39ECh. 20 - Prob. 40ECh. 20 - Prob. 41ECh. 20 - Prob. 42ECh. 20 - Prob. 43ECh. 20 - Prob. 44ECh. 20 - Prob. 45ECh. 20 - Prob. 46ECh. 20 - Prob. 47ECh. 20 - Prob. 48ECh. 20 - Prob. 49ECh. 20 - Prob. 50ECh. 20 - Prob. 51ECh. 20 - Prob. 52ECh. 20 - Prob. 53ECh. 20 - Prob. 54ECh. 20 - Prob. 55ECh. 20 - Prob. 56ECh. 20 - Prob. 57ECh. 20 - Prob. 58ECh. 20 - Prob. 59ECh. 20 - Prob. 60ECh. 20 - Prob. 61ECh. 20 - Prob. 62ECh. 20 - Prob. 63ECh. 20 - Prob. 64ECh. 20 - Prob. 65ECh. 20 - Prob. 66ECh. 20 - Prob. 67ECh. 20 - Prob. 68ECh. 20 - Prob. 69ECh. 20 - Prob. 70ECh. 20 - Prob. 71ECh. 20 - Prob. 72ECh. 20 - Prob. 73ECh. 20 - Prob. 74ECh. 20 - Prob. 75ECh. 20 - Prob. 76ECh. 20 - Prob. 77ECh. 20 - Prob. 78ECh. 20 - Prob. 79ECh. 20 - Prob. 80ECh. 20 - Prob. 81ECh. 20 - Prob. 82ECh. 20 - Prob. 83ECh. 20 - Prob. 84ECh. 20 - Prob. 85ECh. 20 - Prob. 86ECh. 20 - Prob. 87ECh. 20 - Prob. 88ECh. 20 - Prob. 89ECh. 20 - Prob. 90ECh. 20 - Prob. 91ECh. 20 - Prob. 92ECh. 20 - Prob. 93ECh. 20 - Prob. 94ECh. 20 - Prob. 95ECh. 20 - Prob. 96ECh. 20 - Prob. 97ECh. 20 - Prob. 98ECh. 20 - Prob. 99ECh. 20 - Prob. 100ECh. 20 - Prob. 101ECh. 20 - Prob. 102ECh. 20 - Prob. 103ECh. 20 - Prob. 104ECh. 20 - Prob. 105ECh. 20 - Prob. 106ECh. 20 - Prob. 107ECh. 20 - Prob. 108ECh. 20 - Prob. 109ECh. 20 - Prob. 110ECh. 20 - Prob. 111ECh. 20 - Prob. 112ECh. 20 - Prob. 113ECh. 20 - Prob. 114ECh. 20 - Prob. 115ECh. 20 - Prob. 1SAQCh. 20 - Prob. 2SAQCh. 20 - Prob. 3SAQCh. 20 - Prob. 4SAQCh. 20 - Prob. 5SAQCh. 20 - Prob. 6SAQCh. 20 - Prob. 7SAQCh. 20 - Prob. 8SAQCh. 20 - Prob. 9SAQCh. 20 - Prob. 10SAQ
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