The 1H NMR spectrum has peaks (marked with "x") for a minor byproduct - what might that be?
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The 1H NMR spectrum has peaks (marked with "x") for a minor
byproduct - what might...
Identify the peak in the 1H NMR spectrum corresponding to the CH3 group, explain what coupling...
Identify the peak in the 1H NMR spectrum corresponding to the
CH3 group, explain what coupling pattern it has and why it has that
pattern.
7.4741 7.3572 7.3393 -5.4109 4.2023 4.1906 -4.1725 4.1608 -3.5350 -3.5065 -3.4775 Spectrometer: 400 MHZ Solvent: CDCI T 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 <3.2368 CDCI, x = peak from minor byproduct do 1.00-1 F-602 3.1444 Feer to 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0...
identify the peak in the 1H NMR spectrum corresponding to the CH3 group, explain what coupling...
identify the peak in the 1H NMR spectrum corresponding to the
CH3 group, explain what coupling pattern it has and why it has that
pattern.
7.4741 7.3572 7.3393 -5.4109 4.2023 4.1906 -4.1725 4.1608 -3.5350 -3.5065 -3.4775 Spectrometer: 400 MHZ Solvent: CDCI T 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 <3.2368 CDCI, x = peak from minor byproduct do 1.00-1 F-602 3.1444 Feer to 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0...
fill out the table below using the H-NMR there may be more or less noteable peaks....
fill out the table below using the H-NMR
there may be more or less noteable peaks.
the two most important are Bis-allylic protons and OCH3
Methoxylic protons
Below depicts the H-NMR products: Characterization of the Chemical shift of the peak (location) Integration value peak 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 Proton oza 20.90 619 : parts per Million : Proton
A compound A, C7H12O3, contains two functional groups. One of the functional groups is a derivative...
A compound A, C7H12O3, contains two functional groups. One of the functional groups is a derivative of carboxylic acid. The 1H NMR spectrum of the compound is given below. Deduce the structure of the compound A. Write your structure on the spectrum and using arrows assign all the peaks in the spectrum to various protons in the molecule. (5 Pts, NO PARTIAL CREDITS) 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7...
(a) From the spectral data ( H, C NMR, IR, MS) you were given, identify the...
(a) From the spectral data ( H, C NMR, IR, MS) you were given,
identify the structure of your product. Explain why you chose your
particular product based on the spectroscopic data.
(b) Fully assign the 1H NMR spectrum of your product (i.e.
determine which peaks in the 1H NMR correspond to which hydrogens
in the product). You will not receive full marks for determination
of the unknown unless you assign the 1H NMR spectrum
completely.
(c) Now work backwards...
Predict the structure of the following compounds: Formula: C4H8O (All scale is in ppm) (NMR Solvent:...
Predict the structure of the following compounds:
Formula: C4H8O (All scale is in ppm) (NMR
Solvent: CDCl3)
Calculate the element of unsaturation of the compound.
1H NMR
44 1.o 6.6 5.8 4.0 3. 2.0 Zoom peaks au UUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU 6.6 6.5 6.4 6.3 6.2 6.1 6.0 AM LLLLLLLLLLLLL 4.3 4.2 LUUUUUUUUUU 3.7 4.1 4.0 3.9 3.8
the following 1H NMR shows data from a sample of the reaction of styrene oxide and...
the following 1H NMR shows data from a sample of the
reaction of styrene oxide and HBr.
use the information from the data to indicate the extent to which
the reaction progressed by pointing out the presence or absence of
specific signals.
this is the styrene oxide data before reaction
ოოოოოოოოოო 22 2.79 2.82 12.81 2.80 2.80 mmmmmmm gal- BRUKER Current Data Parastra JUMB Deb-2015-CH25 2013 PZ - Memutation Parameters 11.34 PULPROG SOLVENT cocia FIORES 641025 0.195625 5.1110078 78.000 sec...
What fraction of the measurements are less than 5.1? What fraction of the measurements are larger...
What fraction of the measurements are less than 5.1?
What fraction of the measurements are larger than 3.6?
truct a relative frequency histogram for these 50 measurements 6.2 4.13.8 3.0 3.4 2.9 2.1 4.1 1.7 4.8 3.7. 3.6 5.5 2.1 2.75.1 1.0 3.8 5.7 3.7 2.7 3.8 4.8 2.4 3.8 3.3 4.2 2.46.0 3.0 4.6 2.8 3.2 4.8 2.5 3.8 4.7 4.0 4.6 3.9 3.4 4.3 4.5 5.1 3.6 4.0 4.2 1.6 4.8 5.7
How would you analyze the peaks for a 1H NMR of Bromovanillyl Alcohol and an IR...
How would you analyze the peaks for a 1H NMR of
Bromovanillyl Alcohol and an IR spectra of Bromovanillyl
Alcohol?
IR Peaks
NMR Peaks
%Transmittance 3446.63 3121.86 8 3004.87 2925.69 2877.64 8 1611.72" 1588.93 1499.44 1420.46 1398.31 1371.05 05 1277.51 1200.01 1179.94 1143.10 8 1047.61 1010.21 948.66 852.87 836.91 823.94 780.44 719.71 H NMR (400 mHz, CDCls) Br 6.86 s) 92 7.09 5.90 4.60 1.64 CDCls H20 12.5 12.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5...
Label peaks and determine the structure of the aldehyde in the 1H NMR and 13C1H NMR:...
Label peaks and determine the structure of the
aldehyde in the 1H NMR and 13C1H NMR:
pg 1H NMR of product from aldehyde Yin CDCI3 CHCI ppm Hz Intensity 17.73 3091.6 621.6 2 7.69 3075.7 690.3 3 7.59 3036.2 1108.5 4 7.57 3027.5 1199.0 5 6.98 2793.9 961.0 6 6.95 2779.9 1320.9 76.94 2778.0 1279.1 8 6.93 2771.1 1185.2 7.60 7.55 7.50 7.45 7.40 7.35 7.30 7.25 fl (ppm) 7.20 7.15 7.10 7.057.00 6.95 6.90 OK to group CHCl3 -...
Identify the peak in the 1H NMR spectrum corresponding to the
CH3 group, explain what coupling pattern it has and why it has that
pattern.
7.4741 7.3572 7.3393 -5.4109 4.2023 4.1906 -4.1725 4.1608 -3.5350 -3.5065 -3.4775 Spectrometer: 400 MHZ Solvent: CDCI T 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 <3.2368 CDCI, x = peak from minor byproduct do 1.00-1 F-602 3.1444 Feer to 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0...
identify the peak in the 1H NMR spectrum corresponding to the
CH3 group, explain what coupling pattern it has and why it has that
pattern.
7.4741 7.3572 7.3393 -5.4109 4.2023 4.1906 -4.1725 4.1608 -3.5350 -3.5065 -3.4775 Spectrometer: 400 MHZ Solvent: CDCI T 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 <3.2368 CDCI, x = peak from minor byproduct do 1.00-1 F-602 3.1444 Feer to 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0...
fill out the table below using the H-NMR
there may be more or less noteable peaks.
the two most important are Bis-allylic protons and OCH3
Methoxylic protons
Below depicts the H-NMR products: Characterization of the Chemical shift of the peak (location) Integration value peak 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 Proton oza 20.90 619 : parts per Million : Proton
A compound A, C7H12O3, contains two functional groups. One of the functional groups is a derivative of carboxylic acid. The 1H NMR spectrum of the compound is given below. Deduce the structure of the compound A. Write your structure on the spectrum and using arrows assign all the peaks in the spectrum to various protons in the molecule. (5 Pts, NO PARTIAL CREDITS) 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7...
(a) From the spectral data ( H, C NMR, IR, MS) you were given,
identify the structure of your product. Explain why you chose your
particular product based on the spectroscopic data.
(b) Fully assign the 1H NMR spectrum of your product (i.e.
determine which peaks in the 1H NMR correspond to which hydrogens
in the product). You will not receive full marks for determination
of the unknown unless you assign the 1H NMR spectrum
completely.
(c) Now work backwards...
Predict the structure of the following compounds:
Formula: C4H8O (All scale is in ppm) (NMR
Solvent: CDCl3)
Calculate the element of unsaturation of the compound.
1H NMR
44 1.o 6.6 5.8 4.0 3. 2.0 Zoom peaks au UUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU 6.6 6.5 6.4 6.3 6.2 6.1 6.0 AM LLLLLLLLLLLLL 4.3 4.2 LUUUUUUUUUU 3.7 4.1 4.0 3.9 3.8
the following 1H NMR shows data from a sample of the
reaction of styrene oxide and HBr.
use the information from the data to indicate the extent to which
the reaction progressed by pointing out the presence or absence of
specific signals.
this is the styrene oxide data before reaction
ოოოოოოოოოო 22 2.79 2.82 12.81 2.80 2.80 mmmmmmm gal- BRUKER Current Data Parastra JUMB Deb-2015-CH25 2013 PZ - Memutation Parameters 11.34 PULPROG SOLVENT cocia FIORES 641025 0.195625 5.1110078 78.000 sec...
What fraction of the measurements are less than 5.1?
What fraction of the measurements are larger than 3.6?
truct a relative frequency histogram for these 50 measurements 6.2 4.13.8 3.0 3.4 2.9 2.1 4.1 1.7 4.8 3.7. 3.6 5.5 2.1 2.75.1 1.0 3.8 5.7 3.7 2.7 3.8 4.8 2.4 3.8 3.3 4.2 2.46.0 3.0 4.6 2.8 3.2 4.8 2.5 3.8 4.7 4.0 4.6 3.9 3.4 4.3 4.5 5.1 3.6 4.0 4.2 1.6 4.8 5.7
How would you analyze the peaks for a 1H NMR of
Bromovanillyl Alcohol and an IR spectra of Bromovanillyl
Alcohol?
IR Peaks
NMR Peaks
%Transmittance 3446.63 3121.86 8 3004.87 2925.69 2877.64 8 1611.72" 1588.93 1499.44 1420.46 1398.31 1371.05 05 1277.51 1200.01 1179.94 1143.10 8 1047.61 1010.21 948.66 852.87 836.91 823.94 780.44 719.71 H NMR (400 mHz, CDCls) Br 6.86 s) 92 7.09 5.90 4.60 1.64 CDCls H20 12.5 12.0 11.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5...
Label peaks and determine the structure of the
aldehyde in the 1H NMR and 13C1H NMR:
pg 1H NMR of product from aldehyde Yin CDCI3 CHCI ppm Hz Intensity 17.73 3091.6 621.6 2 7.69 3075.7 690.3 3 7.59 3036.2 1108.5 4 7.57 3027.5 1199.0 5 6.98 2793.9 961.0 6 6.95 2779.9 1320.9 76.94 2778.0 1279.1 8 6.93 2771.1 1185.2 7.60 7.55 7.50 7.45 7.40 7.35 7.30 7.25 fl (ppm) 7.20 7.15 7.10 7.057.00 6.95 6.90 OK to group CHCl3 -...
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