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organic chemistry lab: target compound 3,3 dimethyl-1,2-epoxybutane

I have provided everything below pls help 5,6,7

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Reaction 1
For this assignment, the target compound that you should synthesize is 3,3-dimethyl-1,2-epoxybutane. Again, this is
an electrophilic alkene addition reaction. Examine the product to determine the location of the new functionality.
The alkene is the electron-rich partner, and an electrophilic reagent is needed.
Synthesis Procedures
1. Start Virtual Chemlab and select Epoxiation - 1 from the list of assignments on the whiteboard. After entering
the synthesis laboratory, use the available reagents on the stockroom shelf, identify the appropriate starting
materials required to synthesize the target compound and add them to the round bottom flask. Now add ether
(Et:O) as a solvent and drag the flask to the Stir Plate on the lab bench.
2. The round bottom flask containing the starting materials should now be on the stir plate, and the contents of the
flask should be visible on the chalkboard. From the group of reagents found on the lab bench, select the correct
reagent to synthesize the target compound and add it to the flask on the stir plate. Now attach the heater,
condenser, and Na gas to the round bottom flask so the reaction mixture can be heated.
3. Start the reaction by clicking on the Stir button on the front of the stir plate. You should be able to observe the
reaction mixture stirring in the flask. Monitor the progress of the reaction using TLC measurements as necessary
until the product has formed and the starting materials have been consumed. You can advance the laboratory
time using the clock on the wall. With the electronic lab book open (click on the lab book on the stockroom
counter), you can also save your TLC plates by clicking Save on the TLC window.
. When the reaction is complete, "work up" your reaction by first dragging and dropping the separatory funnel on
the flask and then adding NaOH to the funnel. Extract the organic layer in the funnel by clicking on the top layer
and dragging it to the cork ring on the lab bench. Your target compound should now be in this flask.
List the
starting materials 3.3-dimethyl-1-butene
Solvent ether (Et20)
reagent(s) MCPBA
products formed: 3,3-dimethyl-1,2-epoxybutane
How long did it take to finish the reaction? 3 hours and 3 minutes
What are the TLC values (R/) for (a) Starting Materials: 0.17
(b) Products: none
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Characterization
After completing a reaction and working up the products, it is still necessary to confirm that the correct product was
formed. The most common tools used for this analysis are Fourier Transform Infrared (FTIR) and Nuclear Magnetic
Resonance (NMR) spectroscopy. In the virtual laboratory, H and "'C NMR spectra are available. Details on
interpreting FTIR and NMR spectra are found in your textbook.
5. To collect an FTIR spectrum of your product, click on the FTIR spectrometer located to the right of the lab bench
and drag the salt plate icon to the flask on the lab bench. A window containing the FTIR spectrum for your
product should now open. Identify the relevant peaks in the FTIR spectrum and record the position and
associated functional group for each in the FTIR table below. The FTIR spectrum can also be saved to the lab book
for later analysis.
IR Absorption (cm ]
Assignment
6. To collect a 'H NMR spectrum of your product, click on the NMR magnet located to the right of the chalkboard
and drag the NMR sample tube to the flask on the lab bench. A window containing the NMR spectrum for your
product should now open. You can zoom into various portions of the NMR spectrum by clicking and dragging
over the desired area. The Zoom Out button is used to zoom back out to view the full spectrum. Identify all of the
peaks in the NMR spectrum and record the chemical shift, the splitting, and the number of hydrogens for each
peak in the NMR table below. The NMR spectrum can also be saved to the lab book for later analysis
1H NMR
Peak
Chemical
Shift (6)
Multiplicity
Peak
Chemical
Shift (5)
Multiplicity
H
7
Structure:
2
3
3,3-Dimethyl-1,2-
epoxybutane
11
6
12
"Specify the multiplicity as a singlet (s), doublet (d), triplet (t), quartet (q), or multiplet (m).
`Specify the number of hydrogens associated with each peak.
7.
Do the FTIR and NMR spectra you measured and recorded in the tables above confirm that you synthesized the
assigned target compound? Explain.
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'H NMR
Common Name:
UPAC Name:
Zoom Out
CAS No.:
Solvent:
BP:
MP:
1.00
06 0
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
23
0.00
10.0
970
870
50
3.0
2.0
1.0
0.0
-0.5
No.
Height
No.
Height
No.
Height
No.
Height
No.
Height
2.7830
4
20 355
7
10
13
3.0026
5
11
14
OK
SAVE
3
3.0599
12
16

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