ORGANIC CHEMISTRY II
Electrophilic Aromatic Substitution: Reaction Pathways of Methyl Benzoate
Determining the identity of four compounds (A1, A2, B1, and B2) based on information about the reactions that form them and spectral data.
Reaction group A:.
.Reaction Group B, similar reactions, but in the opposite order.
In this document, you’ll find several spectra for these compounds. Use these spectra, along with the reaction information above, to determine the structures of A1, A2, B1, and B2, and explain your answers.
Draw A1 structure and Explain
Draw A2 Structure and explain
Draw B1 structure and explain
Draw B2 structure and explain
Homework Answers
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ORGANIC CHEMISTRY II
Electrophilic Aromatic Substitution: Reaction Pathways
of Methyl Benzoate
Determining the identity of four...
Organic Chemistry II Lab: Unknown Identification QUESTION: Please predict structure based on C13,...
Organic Chemistry II Lab: Unknown
Identification
QUESTION: Please predict structure based on C13, HNMR,
and Mass spectrum provided. Also, label peaks and provide short
analysis. Also, my unknown is a solid.
Please answer ASAP
------------------------------------------------------------------------------------
*PEAK VALUES*:
MASS SPECTRUM
C13:
HNMR:
------------------------------------------------------------------------------------
SPECTRUMS THAT NEED TO BE ANALYZED TO PREDICT
STRUCTURE:
We were unable to transcribe this imageNatural Abundances of Comunon Elements and Their Isotopes % Element Hydrogen Carbon Nitrogen Oxygen Fluorine Silicon Phosphorus Sulfur Chlorine Bromine Iodine H 0.015...
Interpret the CNMR, HNMR and IR spectrum to determine the identity of the unknown compound. MP...
Interpret the CNMR, HNMR and IR spectrum to determine the
identity of the unknown compound. MP = -56 degrees C and BP = 131
degrees C
13C NMR 220 220 200 180 180 160 140 120 PPM 100 80 60 40 20 0 El-MS: 100.1 MP = -56 °C BP = 131 °C 1H NMR 2 4 3 8 PPM SciFinder® οοτ 001 οε 08 TRANSMITTANCE [%] 60 40 20 40ο 4000 38ο 3500 οοο 3000 εοο οοο 2500 2000...
1) Which compound gives the following spectra? For the 'H-NMR assign all signals. Interpret base peak and mole pea...
1) Which compound gives the following spectra? For the 'H-NMR assign all signals. Interpret base peak and mole peak in the mass spectrum if a mole peak exists. Assign at least two "C signals. How does the IR spectrum support your findings? (12 pts.) 100- Relative Intensity 0- 20 40 60 80 100 140 160 180 200 220 120 m/ 200 180 160 140 120 100 80 60 40 20 0 ppm t6H 9,4H 11H d, 2 H 9 8...
2. The 13C NMR spectrum is shown below for the major product of the following reaction....
2. The 13C NMR spectrum is shown below for the major product of the following reaction. Draw the structure of this product. Note that there is an important peak at ca. 166 ppm and that the peak at ca. 40 ppm is due to a contaminant. excess KMnO4 H H. aq. NaOH 200 180 100 80 40 20 160 140 120 60
identifying the unknown using IR, HNMR CNMR and Mass spectrums Unknown H407 100- 18-N-9500 Relative Intensity...
identifying the unknown using IR, HNMR CNMR and Mass
spectrums
Unknown H407 100- 18-N-9500 Relative Intensity 160 180 200 220 Order 20 40 60 80 100 120 140 m/z Unknown H407 mm NREUTHER Unknown H407 d. 3H 1 Зн m, 3H d. 1H m, 2H m, 2H m, 1Η br. s, 1H 10 8 PPM Unknown H407 20 0 80 60 4 0 100 120 140 180 160
Compound Z, CaHie0. Deduce its structure. IR: significant peaks at 2962 and 1718 (intense) cm. Mass...
Compound Z, CaHie0. Deduce its structure. IR: significant peaks at 2962 and 1718 (intense) cm. Mass spectrum: a few of the significant peaks include 128, 103, 57 m/z H-NMR: S,3H's aH's t,2t's PPM 13C-NMR 220 200 180 160 140 120 PPM 100 80 60 40 20
Molecule C: Molecule D: Can someone PLEASE EXPLAIN the answers?????? 2. Below are the 'H and...
Molecule C:
Molecule D:
Can someone PLEASE EXPLAIN the answers??????
2. Below are the 'H and 13C NMR spectra for four isomers of C&H:02. Provide the structure that produced each set of spectra. Molecule A: 'H NMR 3H 3H no coupling, so no adjacent carbons with hydrogen atoms 2H 5 3 2 0 PPM 13C NMR aldehyde or ketone no aldehyde in 1H NMR, SO ketone 220 200 180 160 140 120 100 PPM 80 60 40 20 0 Molecule...
You are provided with the molecular formula for each compound. calculate the unsaturation index f...
You are provided with the molecular formula for each compound. calculate the unsaturation index for each problem. -u2C+2+N-X-H For IR, determine the functional groups present and annotate the absorbances that confirm the functional group (including finger print region absorbances). 2 . For 1H NMR, label each signal (a, b, c,.... starting from the right (0.0 PPM). Draw the structure of the compound in the spectra and annotate. 13C NMR spectra is provided for information. Annotation of the 13C NMR is...
13C NMR 1. Propose a structure for the compound CsH12, with the following 13C NMR spectral...
13C NMR 1. Propose a structure for the compound CsH12, with the following 13C NMR spectral data. 160 140 120 80 60 40 20 0 200 180 CDS-00-748 100 ppm 2. Propose a structure for the compound CaH;Br, with the following C NMR spectral data. 200 180 160 140 120 80 60 40 100 ppm 20 0 3. Propose a structure for the compound C H2O2, with the following "'C NMR spectral data. 200 180 160 140 120 30600 T...
16. Propose a structure for a molecule of formula CaHsCl which gave the following 1H NMR spectrum. PPM 17. Propose a st...
16. Propose a structure for a molecule of formula CaHsCl which gave the following 1H NMR spectrum. PPM 17. Propose a structure for a molecule whose mass spectrum shows a parent ion at m/z 148, an IR peak at 1680 cm'and gives the following H and 13C NMR spectra 3H зн 2H 2H 2H 3 5 2 7 6 4 PPM 160 140 180 60 220 200 20 0 120 100 80 40 PPM -
Organic Chemistry II Lab: Unknown
Identification
QUESTION: Please predict structure based on C13, HNMR,
and Mass spectrum provided. Also, label peaks and provide short
analysis. Also, my unknown is a solid.
Please answer ASAP
------------------------------------------------------------------------------------
*PEAK VALUES*:
MASS SPECTRUM
C13:
HNMR:
------------------------------------------------------------------------------------
SPECTRUMS THAT NEED TO BE ANALYZED TO PREDICT
STRUCTURE:
We were unable to transcribe this imageNatural Abundances of Comunon Elements and Their Isotopes % Element Hydrogen Carbon Nitrogen Oxygen Fluorine Silicon Phosphorus Sulfur Chlorine Bromine Iodine H 0.015...
Interpret the CNMR, HNMR and IR spectrum to determine the
identity of the unknown compound. MP = -56 degrees C and BP = 131
degrees C
13C NMR 220 220 200 180 180 160 140 120 PPM 100 80 60 40 20 0 El-MS: 100.1 MP = -56 °C BP = 131 °C 1H NMR 2 4 3 8 PPM SciFinder® οοτ 001 οε 08 TRANSMITTANCE [%] 60 40 20 40ο 4000 38ο 3500 οοο 3000 εοο οοο 2500 2000...
1) Which compound gives the following spectra? For the 'H-NMR assign all signals. Interpret base peak and mole peak in the mass spectrum if a mole peak exists. Assign at least two "C signals. How does the IR spectrum support your findings? (12 pts.) 100- Relative Intensity 0- 20 40 60 80 100 140 160 180 200 220 120 m/ 200 180 160 140 120 100 80 60 40 20 0 ppm t6H 9,4H 11H d, 2 H 9 8...
2. The 13C NMR spectrum is shown below for the major product of the following reaction. Draw the structure of this product. Note that there is an important peak at ca. 166 ppm and that the peak at ca. 40 ppm is due to a contaminant. excess KMnO4 H H. aq. NaOH 200 180 100 80 40 20 160 140 120 60
identifying the unknown using IR, HNMR CNMR and Mass
spectrums
Unknown H407 100- 18-N-9500 Relative Intensity 160 180 200 220 Order 20 40 60 80 100 120 140 m/z Unknown H407 mm NREUTHER Unknown H407 d. 3H 1 Зн m, 3H d. 1H m, 2H m, 2H m, 1Η br. s, 1H 10 8 PPM Unknown H407 20 0 80 60 4 0 100 120 140 180 160
Compound Z, CaHie0. Deduce its structure. IR: significant peaks at 2962 and 1718 (intense) cm. Mass spectrum: a few of the significant peaks include 128, 103, 57 m/z H-NMR: S,3H's aH's t,2t's PPM 13C-NMR 220 200 180 160 140 120 PPM 100 80 60 40 20
Molecule C:
Molecule D:
Can someone PLEASE EXPLAIN the answers??????
2. Below are the 'H and 13C NMR spectra for four isomers of C&H:02. Provide the structure that produced each set of spectra. Molecule A: 'H NMR 3H 3H no coupling, so no adjacent carbons with hydrogen atoms 2H 5 3 2 0 PPM 13C NMR aldehyde or ketone no aldehyde in 1H NMR, SO ketone 220 200 180 160 140 120 100 PPM 80 60 40 20 0 Molecule...
You are provided with the molecular formula for each compound. calculate the unsaturation index for each problem. -u2C+2+N-X-H For IR, determine the functional groups present and annotate the absorbances that confirm the functional group (including finger print region absorbances). 2 . For 1H NMR, label each signal (a, b, c,.... starting from the right (0.0 PPM). Draw the structure of the compound in the spectra and annotate. 13C NMR spectra is provided for information. Annotation of the 13C NMR is...
13C NMR 1. Propose a structure for the compound CsH12, with the following 13C NMR spectral data. 160 140 120 80 60 40 20 0 200 180 CDS-00-748 100 ppm 2. Propose a structure for the compound CaH;Br, with the following C NMR spectral data. 200 180 160 140 120 80 60 40 100 ppm 20 0 3. Propose a structure for the compound C H2O2, with the following "'C NMR spectral data. 200 180 160 140 120 30600 T...
16. Propose a structure for a molecule of formula CaHsCl which gave the following 1H NMR spectrum. PPM 17. Propose a structure for a molecule whose mass spectrum shows a parent ion at m/z 148, an IR peak at 1680 cm'and gives the following H and 13C NMR spectra 3H зн 2H 2H 2H 3 5 2 7 6 4 PPM 160 140 180 60 220 200 20 0 120 100 80 40 PPM -
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