ORGANIC CHEMISTRY
9th Edition
ISBN: 9780134645704
Author: WADE AND SIMEK
Publisher: PEARSON
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Chapter 12.15B, Problem 12.10P
Ethers are not easily differentiated by their infrared spectra, but they tend to form predictable fragments in the mass spectrum. The following compounds give similar but distinctive mass spectra.
Both compounds give prominent peaks at m/z 116, 73, 57, and 43. But one compound gives a distinctive strong peak at 87, and the other compound gives a strong peak at 101. Determine which compound gives the peek at 87 and which one gives the peak at 101. Propose fragmentations to account for the ions at m/z 116, 101, 87, and 73.
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Chapter 12 Solutions
ORGANIC CHEMISTRY
Ch. 12.3 - Complete the following conversion table. (cm1)...Ch. 12.5 - Which of the bonds shown in red are expected to...Ch. 12.7C - For each hydrocarbon spectrum, determine whether...Ch. 12.9A - Spectra are given for three compounds. Each...Ch. 12.10 - The infrared spectra for three compounds are...Ch. 12.12 - Prob. 12.6PCh. 12.14B - Identify which of these four mass spectra indicate...Ch. 12.15A - Show the fragmentation that accounts for the...Ch. 12.15A - Show the fragmentations that give rise to the...Ch. 12.15B - Ethers are not easily differentiated by their...
Ch. 12.15C - Prob. 12.11PCh. 12 - Prob. 12.12SPCh. 12 - Prob. 12.13SPCh. 12 - All of the following compounds absorb infrared...Ch. 12 - Prob. 12.15SPCh. 12 - Four infrared spectra are shown, corresponding to...Ch. 12 - Predict the masses and the structures of the most...Ch. 12 - Prob. 12.18SPCh. 12 - Prob. 12.19SPCh. 12 - (A true story) While organizing the undergraduate...Ch. 12 - Prob. 12.21SPCh. 12 - Prob. 12.22SPCh. 12 - An unknown, foul-smelling hydrocarbon gives the...Ch. 12 - covered a synthesis of alkynes by a double...Ch. 12 - Three IR spectra are shown, corresponding to three...Ch. 12 - Prob. 12.26SPCh. 12 - Prob. 12.27SPCh. 12 - Prob. 12.28SPCh. 12 - The ultimate test of fluency in MS and IR is...Ch. 12 - Prob. 12.30SPCh. 12 - Consider the following four structures, followed...
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