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21) Which of the following is not a nucleophile? A) Br B) FeBr3 C) NH3 D)...
Propose structures for compounds that fit the following 'H NMR data. CH,Br 2H quintet at 2.48,...
Propose structures for compounds that fit the following 'H NMR data. CH,Br 2H quintet at 2.48, J=6 Hz 4H triplet at 3.5 8, J= 6 Hz 2. C.H.O 2H quartet at 2.5 8, 3H Singlet at 2.0 8, 3H triplet at 1.08 1. C,H40 6H triplet at 0.9 8, J = 7 Hz 4H sextet at 1.6 8, J= 7 Hz 4H triplet at 2.48, J= 7 Hz CH4 6H doublet at 1.28, J= 7 Hz 3H singlet at 2.38...
and draw the Structures Determine the Hydrogen Deficiency Index Challenges: C4H8O2 1.2 8: 3H triplet 3.0...
and draw the Structures Determine the Hydrogen Deficiency Index Challenges: C4H8O2 1.2 8: 3H triplet 3.0 8: 2H quartet 3.6 8: 3H singlet CoH14 1.3 8: 9H singlet 7.2 8:5H multiplet C&H;N 3.7 8:2H singlet 7.2 8:5H singlet C.H.CI,O2 1.4 8: 3H triplet 4.3 8: 2H quartet 5.9 8: 1H singlet CsH1002 1.2 8:6H doublet 2.0 8:3H singlet 5.0 8: 1H septet 'H NMR Practice Problems Best thing is to first determine the Hydrogen Deficiency Index so you know the...
if anyone can check these answers for me and tell me which are right or wrong id appreciate it 0. How can p-aminobenzoic acid (a sunscreen) be synthesized from benzene? (Note that sometimes more...
if anyone can check these answers for me and tell me which are
right or wrong id appreciate it
0. How can p-aminobenzoic acid (a sunscreen) be synthesized from benzene? (Note that sometimes more than one isomer will be obtained, which is fine as long as the desired isomer is one of the major products.) several steps HOOC 4. Sn, HC 4.KMnO. .KMnO 4.Sn, HC 3.KMnO 3. CHCI, AİCİ, 3. Sn, HC . HNO, H SO 2. HNO,, H:SO4 1,...
The following problem is similar to question 3, except the molecular formala is not provided. Yea...
The following problem is similar to question 3, except the molecular formala is not provided. Yea lecular weight of the molecule and clues from the IR to igare out the molecular formula and structur oawill have to use the tructure of the molecule 3000 2000 1500 1000 S. Propose a structure for a compound, with molecular formula CH N that fits the following spectroscopic data: IR: 3400 cm 'H NMR: 0.9 δ (triplet, 6H), 1.1 δ (singlet i H, exchanges...
3 (Spts) If you needed te distinguish each of the compounds in the following pairs (...
3 (Spts) If you needed te distinguish each of the compounds in the following pairs ( A & 8) from each other, which spectrescopic method (infrared or H nmr would be best (mort certain)P Asume that you de not have a reference sample of either compound for direct comparison NMR IR Compound Compound A csO CHy CEN NEO-CHy CM-c HO avcat C+CH -o-CHs -o-ots ogc- 4. (6pts) Write the molecular fragment that corresponds to the NMR signals shown below: 4.2...
Which structure is consistent with the following proton NMR data: 1.2 (3H, triplet, J = 8Hz),...
Which structure is consistent with the following proton NMR data: 1.2 (3H, triplet, J = 8Hz), 3.7 (2H, quartet, J = 8Hz), 4.1 (2H, singlet) 11.1 (1H, singlet) CH,CH3 OCH, or OOOO co What is the product of this reaction sequence? 1. NaOEt 2. PhCH,Br 3. H2O*, Heat ОН Question 19 (1 point) Which of the following can be prepared by acetoacetic ester synthesis? 04 only O1 only O3 and 4 only O2 and 3 only
24. Which compound most likely matches the following 1H NMR spectrum? 3H 2H (A) Br (B)...
24. Which compound most likely matches the following 1H NMR spectrum? 3H 2H (A) Br (B) CH3 Br (0) (3n65-s (C) Br, Br (D) H3C CH3 CHa Whal is the IUPA 25. Which compound most likely matches the following 1H NMR spectrum? 3H ЗН 2H 2H 2H 2H (A) (B) CH3 CH3 НаС H3CO (C) (D) H3C
A compound of unknown structure gave the following spectroscopic data: Mass spectrum: M+ = 88.1 IR:...
A compound of unknown structure gave the following
spectroscopic data:
Mass spectrum: M+ = 88.1
IR: 3600cm-1
1H NMR: 1.4 (2H, quartet, J=7Hz); 1.2 (6H, singlet); 1.0 (1H,
singlet); 0.9 (3H, triplet, J=7Hz)
13C NMR: 74, 35, 27, 25
a. assuming that the compound contains C and H but may or may not
contain O, give three possible molecular formulas.
b. how many protons (H) does the compound contain?
c. what functional group(s) does the compound contain?
d. how many...
Question 3) Propose a structure consistent with the following spectral data for a compound C&H..0) IR...
Question 3) Propose a structure consistent with the following spectral data for a compound C&H..0) IR 3100 (broad, strong). 1710 (strong) cm''; 'H NMR 1.05 (triplet; 3H), 2.40 (triplet: 2H), 3.46 (quartet, 2H), 3.61 (triplet, 2H), 12.01 (broad singlet, 1H) (10 points) puy!!! Chemical Shift in 'H NMR --C-HE! 2.1-2.6 C-H 2.3-2.9 (benzylic) (vinylic) 4.5-6.0 -C-H 9.0-10.0 (aldehydic) C-H (allylic) 1.6-2.8 6.5-8,0 -c-H| (phenyl) 3.2-4.2 C-H 0.7-1 (alkyl) 1110 7 32 1 8 (ppm) I-¢-H| 22-4.2 - C- H 2.7-4.2...
7. Which compound below be H-1 NMR 0.9 ppm (quartet fits the following spectral data? (6...
7. Which compound below be H-1 NMR 0.9 ppm (quartet fits the following spectral data? (6 points) 1.2 ppm (sextet 2 hydrogens), 2.1 ppm (triplet, hydrogens), 4.3 ppm (singlet 3 hydrogens) C-13 NMR 5 signals 25 ppr ppm (CH2); 61 ppm: (CH3) 198 Ppm (C). IR strong peak 1735 cm Ignals 25 ppm (CH): 35 ppm (CH2), 46 ppm (CH2); 61 ppm: em Mass Spee parent M+ = 102 Mass Spec paren ou 0 H2 CH3 HjC Holo H3C- CC...
Propose structures for compounds that fit the following 'H NMR data. CH,Br 2H quintet at 2.48, J=6 Hz 4H triplet at 3.5 8, J= 6 Hz 2. C.H.O 2H quartet at 2.5 8, 3H Singlet at 2.0 8, 3H triplet at 1.08 1. C,H40 6H triplet at 0.9 8, J = 7 Hz 4H sextet at 1.6 8, J= 7 Hz 4H triplet at 2.48, J= 7 Hz CH4 6H doublet at 1.28, J= 7 Hz 3H singlet at 2.38...
and draw the Structures Determine the Hydrogen Deficiency Index Challenges: C4H8O2 1.2 8: 3H triplet 3.0 8: 2H quartet 3.6 8: 3H singlet CoH14 1.3 8: 9H singlet 7.2 8:5H multiplet C&H;N 3.7 8:2H singlet 7.2 8:5H singlet C.H.CI,O2 1.4 8: 3H triplet 4.3 8: 2H quartet 5.9 8: 1H singlet CsH1002 1.2 8:6H doublet 2.0 8:3H singlet 5.0 8: 1H septet 'H NMR Practice Problems Best thing is to first determine the Hydrogen Deficiency Index so you know the...
if anyone can check these answers for me and tell me which are
right or wrong id appreciate it
0. How can p-aminobenzoic acid (a sunscreen) be synthesized from benzene? (Note that sometimes more than one isomer will be obtained, which is fine as long as the desired isomer is one of the major products.) several steps HOOC 4. Sn, HC 4.KMnO. .KMnO 4.Sn, HC 3.KMnO 3. CHCI, AİCİ, 3. Sn, HC . HNO, H SO 2. HNO,, H:SO4 1,...
The following problem is similar to question 3, except the molecular formala is not provided. Yea lecular weight of the molecule and clues from the IR to igare out the molecular formula and structur oawill have to use the tructure of the molecule 3000 2000 1500 1000 S. Propose a structure for a compound, with molecular formula CH N that fits the following spectroscopic data: IR: 3400 cm 'H NMR: 0.9 δ (triplet, 6H), 1.1 δ (singlet i H, exchanges...
3 (Spts) If you needed te distinguish each of the compounds in the following pairs ( A & 8) from each other, which spectrescopic method (infrared or H nmr would be best (mort certain)P Asume that you de not have a reference sample of either compound for direct comparison NMR IR Compound Compound A csO CHy CEN NEO-CHy CM-c HO avcat C+CH -o-CHs -o-ots ogc- 4. (6pts) Write the molecular fragment that corresponds to the NMR signals shown below: 4.2...
Which structure is consistent with the following proton NMR data: 1.2 (3H, triplet, J = 8Hz), 3.7 (2H, quartet, J = 8Hz), 4.1 (2H, singlet) 11.1 (1H, singlet) CH,CH3 OCH, or OOOO co What is the product of this reaction sequence? 1. NaOEt 2. PhCH,Br 3. H2O*, Heat ОН Question 19 (1 point) Which of the following can be prepared by acetoacetic ester synthesis? 04 only O1 only O3 and 4 only O2 and 3 only
24. Which compound most likely matches the following 1H NMR spectrum? 3H 2H (A) Br (B) CH3 Br (0) (3n65-s (C) Br, Br (D) H3C CH3 CHa Whal is the IUPA 25. Which compound most likely matches the following 1H NMR spectrum? 3H ЗН 2H 2H 2H 2H (A) (B) CH3 CH3 НаС H3CO (C) (D) H3C
A compound of unknown structure gave the following
spectroscopic data:
Mass spectrum: M+ = 88.1
IR: 3600cm-1
1H NMR: 1.4 (2H, quartet, J=7Hz); 1.2 (6H, singlet); 1.0 (1H,
singlet); 0.9 (3H, triplet, J=7Hz)
13C NMR: 74, 35, 27, 25
a. assuming that the compound contains C and H but may or may not
contain O, give three possible molecular formulas.
b. how many protons (H) does the compound contain?
c. what functional group(s) does the compound contain?
d. how many...
Question 3) Propose a structure consistent with the following spectral data for a compound C&H..0) IR 3100 (broad, strong). 1710 (strong) cm''; 'H NMR 1.05 (triplet; 3H), 2.40 (triplet: 2H), 3.46 (quartet, 2H), 3.61 (triplet, 2H), 12.01 (broad singlet, 1H) (10 points) puy!!! Chemical Shift in 'H NMR --C-HE! 2.1-2.6 C-H 2.3-2.9 (benzylic) (vinylic) 4.5-6.0 -C-H 9.0-10.0 (aldehydic) C-H (allylic) 1.6-2.8 6.5-8,0 -c-H| (phenyl) 3.2-4.2 C-H 0.7-1 (alkyl) 1110 7 32 1 8 (ppm) I-¢-H| 22-4.2 - C- H 2.7-4.2...
7. Which compound below be H-1 NMR 0.9 ppm (quartet fits the following spectral data? (6 points) 1.2 ppm (sextet 2 hydrogens), 2.1 ppm (triplet, hydrogens), 4.3 ppm (singlet 3 hydrogens) C-13 NMR 5 signals 25 ppr ppm (CH2); 61 ppm: (CH3) 198 Ppm (C). IR strong peak 1735 cm Ignals 25 ppm (CH): 35 ppm (CH2), 46 ppm (CH2); 61 ppm: em Mass Spee parent M+ = 102 Mass Spec paren ou 0 H2 CH3 HjC Holo H3C- CC...
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