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Identify products for the following reactions. Spectral features of
the products are provided, justify your answer...
1.a. Identify the number of signals that would be observed in the 'H NMR spectrum for...
1.a. Identify the number of signals that would be observed in the 'H NMR spectrum for each of the molecules below. 1.b. For each spectrum, choose the compound of the four shown above in to that best matches the spectrum. Draw the structure in the box provided, and justify your answer in the space below to receive full credit Spectrum 300 M MNMR in CDCI, Source: ASV Spectrum 300 MHZ 'H NVR spectrum in COCI, Source: ASV tification: y -...
Match the following infrared spectrum with the correct structure. Justify justify your answer by identifying the...
Match the following infrared spectrum with the correct structure.
Justify justify your answer by identifying the absorption bands. If
there are two alternatives with the same functional group, you must
justify why one option was selected instead of the other.
SER TEREELFI SERRES A. ~ =-CH3 . PES NE SELAMAT - ноолуу B. na
2. Identify the unknown compound given the following IR, TH-NMR, and 11C-NMR. Justify your answer by...
2. Identify the unknown compound given the following IR, TH-NMR, and 11C-NMR. Justify your answer by labeling all peaks on the IR. Also, label the 1H-NMR, and 13C-NMR unambiguously...that is draw out the compound and label your l's ab.c, etc. and CS 123, etc. on the structure, then label the corresponding signal on the 1H-NMR, and C-NMR a. C6HN w Jaromatic CH Aromalia! - overtone Cignore) c=c. 3000 ISO IODO съсі, Wwwwwwwwwwwapwwwithout dapu
A suggested approach to solving structures is provided for your benefit (this is by no means...
A suggested approach to solving structures is provided for your benefit (this is by no means comprehensive) Since the molecular formula is provided for each problem students will use the formula provided below where C = #carbons, N = # of nitrogen's, H = #hydrogens, and X = # of halogens to find the Unsaturation index (U). U /2C+N Examine the IR spectrum for the presence or absence of groups with diagnostic absorption bands e.g. carbonyl groups, hydroxyl groups, amines...
3. Give the products for each of the following reactions and clearly show any stereochemical features....
3. Give the products for each of the following reactions and clearly show any stereochemical features. CH3 NBS NaCN 4. "One of the most difficult problems in making synthetic proteins is maintaining stereochemistry when amino acids are connected together. The difficulty arises because amino acids tend to epimerize when "activated" for coupling. Epimerization can happen when the end of the amino acid chain forma the cyclic intermediate, as shown here. Explain why the ring structure can epimerize so readily." (9.30...
8. Use the spectral data below to propose structure(s) for the compound labeled Y, which can...
8. Use the spectral data below to propose structure(s) for the compound labeled Y, which can be identified from the MS, IR, spectra presented below. (2 pts) a) Determine the molecular formula (MF = C.H. e) from the molecular ion on the MS using the Rule 13 where (MW/13) En+r. Since the M+2 peak is approximately 1/3 of the intensity of the molecular peak, this is an indication that the compound contain a cl _atom. Make the necessary substitution for...
(a) Draw the major products of the following reactions. Pay attention to the stereochemistry if relevant...
(a) Draw the major products of the following reactions. Pay
attention to the stereochemistry if relevant and draw all the
stereoisomers.
(b) Which of the products are optically active? Explain your
answer.
(CH3)3ONat OH HCECH ,,Hac H3C-C HB CH3 A. CH3 Br LH CH2OH CH3 V HH H₃07 NaSCH3 Br DMSO
1. Calculate D.O.U. 2. Identify and draw correct structure. 3. Assign peaks to justify your structure....
1. Calculate D.O.U.
2. Identify and draw correct structure.
3. Assign peaks to justify your structure.
Wh Question 2 IR Spectrum quid 2954 1741 1200 3000 0.0 800 4000 2000 1600 V (cm) 100 Mass Spectrum 0.5 80 1.01 of base pe YTTET 88 Uspectiu solvent thanal 154 mg / 10 plength: 1.00 cm M88 C4H802 1.5 200 240 280 200 350 250 80 300 40 120 180 mle 2. (nim 13C NMR Spectrum (500 MHz CDI, solution 1 DEPT...
Identify the structure and draw it based on the formula and the spectroscopy. Justify your answer...
Identify the structure and draw it based on the formula and the
spectroscopy. Justify your answer
MF CH40 47 MW 114 C 73.6 SH 12.4 3H 6H Copyright 1994 0.5 2.0 1.0 PPM 3.0 Poton NMR 2.5 1.5 180 160 140 200 80 120 100 20 PPM 0 Carbon 13 NMA ww ab sa ELITSM м М 6е 28 1500 180e 2000 2500 HAVENUMBERS 6H ЗН Copyright 1994 ST'S0T 1289.32 aL L9ET 20 89T 6L 8TLT ALE62 HAVENUMBERS ЗН ©1994...
(b) (5 points) Are X and Y independent? Justify your answer. (c) (5 points) Identify the...
(b) (5 points) Are X and Y independent? Justify your answer.
(c) (5 points) Identify the random variable expressed as the
conditional expectation of Y given X, i.e., E[Y |X].
6. (15 points) Consider two independent Bernoulli r.v., U and V, both with probability of success 1/2. Let X = U+V and Y = |U - VI. (a) (5 points) Calculate the covariance of X and Y , oxy.
1.a. Identify the number of signals that would be observed in the 'H NMR spectrum for each of the molecules below. 1.b. For each spectrum, choose the compound of the four shown above in to that best matches the spectrum. Draw the structure in the box provided, and justify your answer in the space below to receive full credit Spectrum 300 M MNMR in CDCI, Source: ASV Spectrum 300 MHZ 'H NVR spectrum in COCI, Source: ASV tification: y -...
Match the following infrared spectrum with the correct structure.
Justify justify your answer by identifying the absorption bands. If
there are two alternatives with the same functional group, you must
justify why one option was selected instead of the other.
SER TEREELFI SERRES A. ~ =-CH3 . PES NE SELAMAT - ноолуу B. na
2. Identify the unknown compound given the following IR, TH-NMR, and 11C-NMR. Justify your answer by labeling all peaks on the IR. Also, label the 1H-NMR, and 13C-NMR unambiguously...that is draw out the compound and label your l's ab.c, etc. and CS 123, etc. on the structure, then label the corresponding signal on the 1H-NMR, and C-NMR a. C6HN w Jaromatic CH Aromalia! - overtone Cignore) c=c. 3000 ISO IODO съсі, Wwwwwwwwwwwapwwwithout dapu
A suggested approach to solving structures is provided for your benefit (this is by no means comprehensive) Since the molecular formula is provided for each problem students will use the formula provided below where C = #carbons, N = # of nitrogen's, H = #hydrogens, and X = # of halogens to find the Unsaturation index (U). U /2C+N Examine the IR spectrum for the presence or absence of groups with diagnostic absorption bands e.g. carbonyl groups, hydroxyl groups, amines...
3. Give the products for each of the following reactions and clearly show any stereochemical features. CH3 NBS NaCN 4. "One of the most difficult problems in making synthetic proteins is maintaining stereochemistry when amino acids are connected together. The difficulty arises because amino acids tend to epimerize when "activated" for coupling. Epimerization can happen when the end of the amino acid chain forma the cyclic intermediate, as shown here. Explain why the ring structure can epimerize so readily." (9.30...
8. Use the spectral data below to propose structure(s) for the compound labeled Y, which can be identified from the MS, IR, spectra presented below. (2 pts) a) Determine the molecular formula (MF = C.H. e) from the molecular ion on the MS using the Rule 13 where (MW/13) En+r. Since the M+2 peak is approximately 1/3 of the intensity of the molecular peak, this is an indication that the compound contain a cl _atom. Make the necessary substitution for...
(a) Draw the major products of the following reactions. Pay
attention to the stereochemistry if relevant and draw all the
stereoisomers.
(b) Which of the products are optically active? Explain your
answer.
(CH3)3ONat OH HCECH ,,Hac H3C-C HB CH3 A. CH3 Br LH CH2OH CH3 V HH H₃07 NaSCH3 Br DMSO
1. Calculate D.O.U.
2. Identify and draw correct structure.
3. Assign peaks to justify your structure.
Wh Question 2 IR Spectrum quid 2954 1741 1200 3000 0.0 800 4000 2000 1600 V (cm) 100 Mass Spectrum 0.5 80 1.01 of base pe YTTET 88 Uspectiu solvent thanal 154 mg / 10 plength: 1.00 cm M88 C4H802 1.5 200 240 280 200 350 250 80 300 40 120 180 mle 2. (nim 13C NMR Spectrum (500 MHz CDI, solution 1 DEPT...
Identify the structure and draw it based on the formula and the
spectroscopy. Justify your answer
MF CH40 47 MW 114 C 73.6 SH 12.4 3H 6H Copyright 1994 0.5 2.0 1.0 PPM 3.0 Poton NMR 2.5 1.5 180 160 140 200 80 120 100 20 PPM 0 Carbon 13 NMA ww ab sa ELITSM м М 6е 28 1500 180e 2000 2500 HAVENUMBERS 6H ЗН Copyright 1994 ST'S0T 1289.32 aL L9ET 20 89T 6L 8TLT ALE62 HAVENUMBERS ЗН ©1994...
(b) (5 points) Are X and Y independent? Justify your answer.
(c) (5 points) Identify the random variable expressed as the
conditional expectation of Y given X, i.e., E[Y |X].
6. (15 points) Consider two independent Bernoulli r.v., U and V, both with probability of success 1/2. Let X = U+V and Y = |U - VI. (a) (5 points) Calculate the covariance of X and Y , oxy.
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