2.2. Syu "pase 2110 Prac 3 Acetate 7.2 7.1 ppm 6.00 Ppm 3.0 2.5 2.0 ppm 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ppm S60's 1.151 ° 3.319 =
2.2. Syu "pase 2110 Prac 3 Acetate 7.2 7.1 ppm 6.00 Ppm 3.0 2.5 2.0 ppm 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ppm S60's 1.151 ° 3.319 =
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...
Related questions
Question
Based on the HNMR spectra for 3, need help with the following question. Thank you :) (mechanism provided to show what 3)
Transcribed Image Text:b) Fully assign the provided 'H- NMR spectrum of 3
Add a labelled structure for 3
Entry
chemical shift
integration splitting
assignment
1
4
7
(add rows as needed)
3.
Transcribed Image Text:-CO̟ET
`OAc
-CO̟Et
OCH3
(i) dil aq. HCI, 70 °C
Lipase PS,
t-BUOCH3, 168 h
OH
он (S)-2
(ii) K2CO3, 168 h
OCH3
-CO2ET
-CO,Et
II
1
OH
Eto-P
EtO
OAc 3
(R/S)-2
Figure 2.2: Synthesis of (R/S)-2 and kinetic resolution with lipase PS.
00096
2222N T
6999 4
.... .... ... *:
1.
.... .... ...
2222N NN22
ক
LLLLL
Prac 3 Acetate
7.2
7.1
ppm
6.00
Ppm
4.0
3.5
3.0
2.5
2.0 ppm
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
ppm
000'I
3.095
3.319=
Expert Solution
Step 1
NMR spectroscopy is an important tool for the structural elucidation of organic molecules.
The number if signals in proton NMR spectrum depends on the number of chemically nonequivalent protons present in the molecule.
The splitting of the signal in the proton nmr spectrum occur depending on the number and types of proton present in the vicinity of a proton.
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