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Question 33 The correct structure for ethyl 2-chloropentanoyl chloride is: o OH CI CI ОН OH...
please help and please explain!! 21. Compound L has the molecular formula Ciill 0 L is...
please help and please explain!!
21. Compound L has the molecular formula Ciill 0 L is insoluble in water but dissolves in aqueous NaOH. The infrared spectrum of L shows a broad absorption band in the 3200-3600 cm region; its 'H NMR spectrum consists of: triplet, singlet, quartet, singlet, multiplet, δ 0.80 δ 1.2 δ1.5 δ45 δ 7.0 (6H) (IH) (4H) The most likely structure for compound L is: HO HO HO IV A) I B) 11 C) III D)...
21) Which of the following is not a nucleophile? A) Br B) FeBr3 C) NH3 D)...
21) Which of the following is not a nucleophile? A) Br B) FeBr3 C) NH3 D) - E) CH3OCH3 22) An unknown compound, C9H12, gave the following NMR spectrum: Triplet at 1.21 ppm (3H) Singlet at 2.30 ppm (3H) Quartet at 2.60 ppm (2H) Singlet at 7.04 ppm (4H) What is the structure of the compound? A CH,CH,CH, v. CHA CH; CH2CH3 СН3 V. CH CH3 CH CHCH3 СН3 CH3 A) 1 B) II C) III D) IV E) V
2. Draw the structure of the compound with molecular formula C H1N exhibiting a triplet at...
2. Draw the structure of the compound with molecular formula C H1N exhibiting a triplet at 8 0.9 (6H), a singlet at 8 1.1 (1H), a sextet at 01.3 (4H), a quintet at 8 1.4 (4H) and a triplet at 8 2.6 (4H) in its 'H NMR spectrum. Its IR spectrum shows a medium absorption band near 3400 cm' and its 13C NMR spectrum showed peaks at 13.7, 20.5, 30.4 and 49.2. (2 pts.) 3. Synthesize the following by showing...
Question 9 A compound has the molecular formula, C6H 120 2. Its IR spectrum shows a...
Question 9 A compound has the molecular formula, C6H 120 2. Its IR spectrum shows a strong absorption band near 1740 cm -1; its TH NMR spectrum consists of two singlets, at d 1.4 and 8 2.0. The most likely structure for this compound is: فهل noir I II III to toe H IV V A. V B. III C. D. 11 E. IV
2. Use the 'H NMR and IR data to determine the structure of the following compounds...
2. Use the 'H NMR and IR data to determine the structure of the following compounds and name them. Compound A Molecular formula: CroH IR absorptions at N/A H NMR data: 1.3 (singlet, 9H), 7.0 to 7.5 (multiplet, 5H) ppm Compound B Molecular formula: CHO IR absorptions at 1H NMR data: 1735-1745, 1050 cm 0.93 (doublet, 6H), 1.52 (multiplet, 2H), 1.69 (multiplet, 1H), 2.04 (singlet, 3H), and 4.10 (triplet,2H) ppm Compound C Molecular ion: IR absorptions at 1710 cm 1H...
4. Which compound would give the following IR spectrum? TIRNSMITTANCES ОН ОН If unw ОН D...
4. Which compound would give the following IR spectrum? TIRNSMITTANCES ОН ОН If unw ОН D 5. Which compounds contain stereocenter(s)? OH NII a) I, III, and V b) I, II, and V c) II, III and IV d) II, IV, and V
Question 9 A compound has the molecular formula, C6H 120 2. Its IR spectrum shows a...
Question 9 A compound has the molecular formula, C6H 120 2. Its IR spectrum shows a strong absorption band near 1740 cm -1; its TH NMR spectrum consists of two singlets, at d 1.4 and 8 2.0. The most likely structure for this compound is: فهل voir I II III ti H IV CA. V B. III C. D. II E. IV Question 10 What is the IUPAC name for A. 2,3-Dimethylbutyl formylate B. 2,3-Dimethylbutyl methanoate C. 2,3-Dimethylbutyl methylate D....
Question 29 1. CH3CH2MgBr H Cr04 Which of the following is a synthesis of 3-heptanone? CA....
Question 29 1. CH3CH2MgBr H Cr04 Which of the following is a synthesis of 3-heptanone? CA. 1. DMSO, (COCI)2 CH3CH2CH2CH2CH2OH 2. EtzN B. CH(CH3)2CH Li H30+ CH3CH2CN ether 2. H30* с с. PBr3 NaCN CH3CH2MgBr H30+ CH3CH2CH2CH2OH ether ether D. 1.03 2. Zn/H E. All of these choices are syntheses of 3-heptanone. Question 30 A compound with the molecular formula C 10H 13Cl gave the following 1H NMR spectrum: singlet, 8 1.6 singlet, 3.1 multiplet, 5 7.2 (5H) The most...
C09T0508213 A compound has the molecular formula of CH3O. It exhibits 6 peaks in its 'H...
C09T0508213 A compound has the molecular formula of CH3O. It exhibits 6 peaks in its 'H NMR spectrum. These peaks are (in 6): 5.8 (1H, m), 5.1 (1H, m), 3.7 (2H, t), 2.8 (1H, br s). 23 (2H, m). Which of the following compounds is consistent with this data? Оме H OH OH H CO9T0507896 An unknown compound has the following IR and NMR spectral data. Give a structure for the compound. IR (cm): 3500-2600 (broad), 1710, 1500, 900, 730,690...
Organic Lab Technique Problem Set 1) How many different sets of equivalent protons are there in...
Organic Lab Technique Problem Set 1) How many different sets of equivalent protons are there in the following compound? CI CH3CCH2C(CH3)3 CH3 5. Which or the spect A. three B. four C. five D. six 2) Which of the following gives the furthest downfield shift from TMS in its proton NMR spectrum? A. CC14 B. CHCl3 C. CH2C12 D. CH3CI 3) Which of the following has only a single peak in its proton NMR spectrum? I. (CH3)3CCI II. (CH3)2C=C(CH3)2 H,C...
please help and please explain!!
21. Compound L has the molecular formula Ciill 0 L is insoluble in water but dissolves in aqueous NaOH. The infrared spectrum of L shows a broad absorption band in the 3200-3600 cm region; its 'H NMR spectrum consists of: triplet, singlet, quartet, singlet, multiplet, δ 0.80 δ 1.2 δ1.5 δ45 δ 7.0 (6H) (IH) (4H) The most likely structure for compound L is: HO HO HO IV A) I B) 11 C) III D)...
21) Which of the following is not a nucleophile? A) Br B) FeBr3 C) NH3 D) - E) CH3OCH3 22) An unknown compound, C9H12, gave the following NMR spectrum: Triplet at 1.21 ppm (3H) Singlet at 2.30 ppm (3H) Quartet at 2.60 ppm (2H) Singlet at 7.04 ppm (4H) What is the structure of the compound? A CH,CH,CH, v. CHA CH; CH2CH3 СН3 V. CH CH3 CH CHCH3 СН3 CH3 A) 1 B) II C) III D) IV E) V
2. Draw the structure of the compound with molecular formula C H1N exhibiting a triplet at 8 0.9 (6H), a singlet at 8 1.1 (1H), a sextet at 01.3 (4H), a quintet at 8 1.4 (4H) and a triplet at 8 2.6 (4H) in its 'H NMR spectrum. Its IR spectrum shows a medium absorption band near 3400 cm' and its 13C NMR spectrum showed peaks at 13.7, 20.5, 30.4 and 49.2. (2 pts.) 3. Synthesize the following by showing...
Question 9 A compound has the molecular formula, C6H 120 2. Its IR spectrum shows a strong absorption band near 1740 cm -1; its TH NMR spectrum consists of two singlets, at d 1.4 and 8 2.0. The most likely structure for this compound is: فهل noir I II III to toe H IV V A. V B. III C. D. 11 E. IV
2. Use the 'H NMR and IR data to determine the structure of the following compounds and name them. Compound A Molecular formula: CroH IR absorptions at N/A H NMR data: 1.3 (singlet, 9H), 7.0 to 7.5 (multiplet, 5H) ppm Compound B Molecular formula: CHO IR absorptions at 1H NMR data: 1735-1745, 1050 cm 0.93 (doublet, 6H), 1.52 (multiplet, 2H), 1.69 (multiplet, 1H), 2.04 (singlet, 3H), and 4.10 (triplet,2H) ppm Compound C Molecular ion: IR absorptions at 1710 cm 1H...
4. Which compound would give the following IR spectrum? TIRNSMITTANCES ОН ОН If unw ОН D 5. Which compounds contain stereocenter(s)? OH NII a) I, III, and V b) I, II, and V c) II, III and IV d) II, IV, and V
Question 9 A compound has the molecular formula, C6H 120 2. Its IR spectrum shows a strong absorption band near 1740 cm -1; its TH NMR spectrum consists of two singlets, at d 1.4 and 8 2.0. The most likely structure for this compound is: فهل voir I II III ti H IV CA. V B. III C. D. II E. IV Question 10 What is the IUPAC name for A. 2,3-Dimethylbutyl formylate B. 2,3-Dimethylbutyl methanoate C. 2,3-Dimethylbutyl methylate D....
Question 29 1. CH3CH2MgBr H Cr04 Which of the following is a synthesis of 3-heptanone? CA. 1. DMSO, (COCI)2 CH3CH2CH2CH2CH2OH 2. EtzN B. CH(CH3)2CH Li H30+ CH3CH2CN ether 2. H30* с с. PBr3 NaCN CH3CH2MgBr H30+ CH3CH2CH2CH2OH ether ether D. 1.03 2. Zn/H E. All of these choices are syntheses of 3-heptanone. Question 30 A compound with the molecular formula C 10H 13Cl gave the following 1H NMR spectrum: singlet, 8 1.6 singlet, 3.1 multiplet, 5 7.2 (5H) The most...
C09T0508213 A compound has the molecular formula of CH3O. It exhibits 6 peaks in its 'H NMR spectrum. These peaks are (in 6): 5.8 (1H, m), 5.1 (1H, m), 3.7 (2H, t), 2.8 (1H, br s). 23 (2H, m). Which of the following compounds is consistent with this data? Оме H OH OH H CO9T0507896 An unknown compound has the following IR and NMR spectral data. Give a structure for the compound. IR (cm): 3500-2600 (broad), 1710, 1500, 900, 730,690...
Organic Lab Technique Problem Set 1) How many different sets of equivalent protons are there in the following compound? CI CH3CCH2C(CH3)3 CH3 5. Which or the spect A. three B. four C. five D. six 2) Which of the following gives the furthest downfield shift from TMS in its proton NMR spectrum? A. CC14 B. CHCl3 C. CH2C12 D. CH3CI 3) Which of the following has only a single peak in its proton NMR spectrum? I. (CH3)3CCI II. (CH3)2C=C(CH3)2 H,C...
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