Homework Answers
Add Answer to:
How would you distinguish the following carboxylic acid from its aldehyde derivative using chemical shift in...
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...
need help understanjng what the expected would be molecular formula is C4H6ClN HNMR Spectrum chemical shift,...
need help understanjng what the expected would be molecular
formula is C4H6ClN
HNMR Spectrum chemical shift, Hz 1200 900 2400 2100 1800 1500 600 3000 2.147 2.104 absorption 0.SHE 2,578 16.01 3.678 8 - 5 6 2 4 3 chemical shift, ppm (8) Observed Chemical Shift Table F: 'HNMR Functional Group Analysis Structural Expected Functional Group Fragment Name Chemical Structural Formula Shift Functionalized Structural Fragment 3.672 CH2-CH2 2.578 CH2-CH2 2.1256 CH2-CH2-CH2N HC-CN 2005 Chemical shift, st R-H or CH can...
In this problem you have to elucidate the structure of product B. A substrate A (structure...
In this problem you have to elucidate the structure of product B. A substrate A (structure shown in scheme 1) which was subjected to two consecutive reactions as shown in scheme 1 below to give the product B of molecular formula CsH14Br2. Provide the structure for Product B based on the NMR data provided (attachment 2: Problem set 2). (The 1H NMR and 13C NMR of starting substrate A has been provided for reference purpose only) 1. MnO2, CHCI3, rt,...
PART 1 - For the following compounds A. Predict how many signals would be detected in...
PART 1 - For the following compounds A. Predict how many signals would be detected in the expected 'H NMR spectrum. B. Label proton groups and determine their multiplicity. c. Predict the chemical shifts of each signal in the expected 'H NMR spectrum of the following compounds from the correlation chart in the last page. <Example> Number of signals O Proton groups Multiplicity Triplet B Multiplet (sextet) c Triplet D Singlet Chemical Shirt (ppm) 0.8-1.0 1.2 - 1.5 3.2 4.0...
6) The IR-, 1H- and 13C-spectra of an unknown sample having the formula C8H1602 are shown...
6) The IR-, 1H- and 13C-spectra of an unknown sample having the formula C8H1602 are shown on the next page. a) What can you conclude about the structure form the 13C NMR data ? b) What functional group is present ? Explain your rational c) Propose a structure that is consistent with the spectroscopic data ? 8 8 3 3 8 3000 innn 500 400 2000 1500 Wavenumber[cm-11 TR2009-87586TK 13C NMR NB: solvent peaks have been edited out. 140 120...
Problem set 2: (25 marks) In this problem you have to elucidate the structure of product B. A substrate A (str...
Problem set 2: (25 marks) In this problem you have to elucidate the structure of product B. A substrate A (structure shown in scheme 1) which was subjected to two consecutive reactions as shown in scheme 1 below to give the product B of molecular formula CsH14Br2. Provide the structure for Product B based on the NMR data provided (attachment 2: Problem set 2). (The 1H NMR and 13C NMR of starting substrate A has been provided for reference purpose...
(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...
organic V. Draw the structures of Compound 23A (6 pts), Compound 23B (6 pts) and clearly...
organic
V. Draw the structures of Compound 23A (6 pts), Compound 23B (6 pts) and clearly indicate your assignments of all proton resonances using the lower case letter associated with the signal (6 pts). Calculate the Unsaturation Index of each Compound (2 pts) (20 points total) 1.24 30 1 25 e = 1.25 ppm 2.5 doublet, 6H 20 a = 10.0 ppm Compound 23a: C10H2O 15 singlet, 1H 7.83 7.85 7.09 707 Unsat. Index = (2C+2-H-X+N/2= X=number of halogens d=3.0...
Identify the compound C8H9NO2 from its 1H, 13C/DEPT, COSY, HMQC, and INADEQUATE spectra and show all...
Identify the compound C8H9NO2 from its 1H, 13C/DEPT, COSY, HMQC,
and INADEQUATE spectra and show all correlations.
'H NMR 600 MHz 5480 5470 Hz 5200 5190 Hz 4910 4900 Hz 4370 4360 Hz 2590 2580 Hz 790 780 Hz 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 ppm 13C/DEPT 150.9 MHz 160 150 140 130 120 110 100 90 80 70 60 50 40 30 ppm 274 CHAPTER 5 Two-Dimensional NMR Spectroscopy Exercise...
Fill in the wave number functional group , Vibration and intensity of the compound below in the black space base on the...
Fill in the wave number functional group , Vibration and
intensity of the compound below in the black space base on the
structural type and chemical shift range provided below
Compound name Propanol
REPORT FORM: ORGANIC STRUCTURE DETERMINATION BY SPECTROMETRIC TECHNIQUES Unknown number Infrared absorption assignments: Wavenumber Vibration Functional group(Stretch or band) Intensity (w, m or s) (cm1) H NMR assignment Chemical shift Explanation of multiplicity Integration assignment (рpm) 1C NMR assignment DEPT 135 appearance (if available) Chemical shift (ppm)...
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...
need help understanjng what the expected would be molecular
formula is C4H6ClN
HNMR Spectrum chemical shift, Hz 1200 900 2400 2100 1800 1500 600 3000 2.147 2.104 absorption 0.SHE 2,578 16.01 3.678 8 - 5 6 2 4 3 chemical shift, ppm (8) Observed Chemical Shift Table F: 'HNMR Functional Group Analysis Structural Expected Functional Group Fragment Name Chemical Structural Formula Shift Functionalized Structural Fragment 3.672 CH2-CH2 2.578 CH2-CH2 2.1256 CH2-CH2-CH2N HC-CN 2005 Chemical shift, st R-H or CH can...
In this problem you have to elucidate the structure of product B. A substrate A (structure shown in scheme 1) which was subjected to two consecutive reactions as shown in scheme 1 below to give the product B of molecular formula CsH14Br2. Provide the structure for Product B based on the NMR data provided (attachment 2: Problem set 2). (The 1H NMR and 13C NMR of starting substrate A has been provided for reference purpose only) 1. MnO2, CHCI3, rt,...
PART 1 - For the following compounds A. Predict how many signals would be detected in the expected 'H NMR spectrum. B. Label proton groups and determine their multiplicity. c. Predict the chemical shifts of each signal in the expected 'H NMR spectrum of the following compounds from the correlation chart in the last page. <Example> Number of signals O Proton groups Multiplicity Triplet B Multiplet (sextet) c Triplet D Singlet Chemical Shirt (ppm) 0.8-1.0 1.2 - 1.5 3.2 4.0...
6) The IR-, 1H- and 13C-spectra of an unknown sample having the formula C8H1602 are shown on the next page. a) What can you conclude about the structure form the 13C NMR data ? b) What functional group is present ? Explain your rational c) Propose a structure that is consistent with the spectroscopic data ? 8 8 3 3 8 3000 innn 500 400 2000 1500 Wavenumber[cm-11 TR2009-87586TK 13C NMR NB: solvent peaks have been edited out. 140 120...
Problem set 2: (25 marks) In this problem you have to elucidate the structure of product B. A substrate A (structure shown in scheme 1) which was subjected to two consecutive reactions as shown in scheme 1 below to give the product B of molecular formula CsH14Br2. Provide the structure for Product B based on the NMR data provided (attachment 2: Problem set 2). (The 1H NMR and 13C NMR of starting substrate A has been provided for reference purpose...
(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...
organic
V. Draw the structures of Compound 23A (6 pts), Compound 23B (6 pts) and clearly indicate your assignments of all proton resonances using the lower case letter associated with the signal (6 pts). Calculate the Unsaturation Index of each Compound (2 pts) (20 points total) 1.24 30 1 25 e = 1.25 ppm 2.5 doublet, 6H 20 a = 10.0 ppm Compound 23a: C10H2O 15 singlet, 1H 7.83 7.85 7.09 707 Unsat. Index = (2C+2-H-X+N/2= X=number of halogens d=3.0...
Identify the compound C8H9NO2 from its 1H, 13C/DEPT, COSY, HMQC,
and INADEQUATE spectra and show all correlations.
'H NMR 600 MHz 5480 5470 Hz 5200 5190 Hz 4910 4900 Hz 4370 4360 Hz 2590 2580 Hz 790 780 Hz 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 ppm 13C/DEPT 150.9 MHz 160 150 140 130 120 110 100 90 80 70 60 50 40 30 ppm 274 CHAPTER 5 Two-Dimensional NMR Spectroscopy Exercise...
Fill in the wave number functional group , Vibration and
intensity of the compound below in the black space base on the
structural type and chemical shift range provided below
Compound name Propanol
REPORT FORM: ORGANIC STRUCTURE DETERMINATION BY SPECTROMETRIC TECHNIQUES Unknown number Infrared absorption assignments: Wavenumber Vibration Functional group(Stretch or band) Intensity (w, m or s) (cm1) H NMR assignment Chemical shift Explanation of multiplicity Integration assignment (рpm) 1C NMR assignment DEPT 135 appearance (if available) Chemical shift (ppm)...
Most questions answered within 3 hours.
-
1- What are 5 general characteristics of Botticelli’s
paintings?
2- Describe 5 important traits of Flemish...
asked 49 minutes ago -
A golfer claims that his average golf score at the course he
plays regularly is less...
asked 1 hour ago -
On May 1, First Bank perfected a security interest in Debtor’s
inventory. On June 1, Bob...
asked 1 hour ago -
A new kind of typhoid shot is being developed by a medical
research team. The old...
asked 3 hours ago -
Write a chemical equation for these reactions. (Use
the lowest possible whole number coefficients.) Include
states-of-matter...
asked 5 hours ago -
For each of the Z-scores below, determine two probabilities
(show four three decimal places): (1) the...
asked 5 hours ago -
Oxidative phosphorylation is achieved through chemiosmotic
coupling, which turns chemical energy into osmotic potential energy
that...
asked 8 hours ago -
Hollywood Shoes would like to maintain their cash account at a
minimum level of $64,000, but...
asked 8 hours ago -
Proteins CtrA-P, DnaA, and GcrA behave similarly to what
molecule in the Eukaryotic Cell Cycle?
asked 8 hours ago -
TRUE OR FALSE
In case of a competitive tender procedure, in the request for
quotation, the...
asked 8 hours ago -
I am a little behind please provide some explanation, will
provide thumbs up.
This question considers...
asked 8 hours ago -
Let say the utility function as U(X,Y) = lnX + Y. Show that the
marginal rate...
asked 8 hours ago