11 8. When benzene is treated with Reagent(s) A followed by Reagent(s) B, Compound P (CaHCIO) is the major product. If the order of reagents is reversed, Compound Q (also Calf-CIO) is formed instead (see the scheme below). Both P and Q have a strong IR absorption around 1685 cm, H and "C NMR spectra of P and Q are shown below. Draw the structures of P and Q and list the Reagents A and B. Benzene 11 10 10 1. A 2. B Compound P ¹H NMR 2:2 Compound Q ¹H NMR ut 2:1:1 ppm ppm Benzene DEPT-90 DEPT-135 DEPT-90 DEPT-135 1. B 2. A 200 200 180 160 140 140 2² 2 peaks 120 120 ppm Compound P "C NMR 100 Compound Q 1³C NMR ppm 60 80 60 -9 -8

11 8. When benzene is treated with Reagent(s) A followed by Reagent(s) B, Compound P (CaHCIO) is the major product. If the order of reagents is reversed, Compound Q (also Calf-CIO) is formed instead (see the scheme below). Both P and Q have a strong IR absorption around 1685 cm, H and "C NMR spectra of P and Q are shown below. Draw the structures of P and Q and list the Reagents A and B. Benzene 11 10 10 1. A 2. B Compound P ¹H NMR 2:2 Compound Q ¹H NMR ut 2:1:1 ppm ppm Benzene DEPT-90 DEPT-135 DEPT-90 DEPT-135 1. B 2. A 200 200 180 160 140 140 2² 2 peaks 120 120 ppm Compound P "C NMR 100 Compound Q 1³C NMR ppm 60 80 60 -9 -8

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.

Question

11
8.
When benzene is treated with Reagent(s) A followed by Reagent(s) B, Compound P (CaHCIO) is the major
product. If the order of reagents is reversed, Compound Q (also CaHCIO) is formed instead (see the scheme below). Both
P and Q have a strong IR absorption around 1685 cm, H and "C NMR spectra of P and Q are shown below. Draw the
structures of P and Q and list the Reagents A and B.
Benzene
10
1. A
2. B
9
Compound P
¹H NMR
Compound Q
¹H NMR
2:2
السر
2:1:1
ppm
5
ppm
:
3
3
Benzene
DEPT-90
DEPT-135
0
DEPT-90
200 180
200
DEPT-135
1. B
2. A
180
160
160
140
12
140
120
120
100
ppm
Compound P
13C NMR
2 peaks
60
BO
Compound Q
13C NMR
100
ppm
80 60
40
-8
20
20

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