D. nuclear E. magnetic 28. Which of the compounds below best fits the spectrum shown? H3C...
Which of the following C4HzOCl compounds best fits the proton NMR spectrum shown below? (The numbers above the peaks are integration values.) C4H-OCI 1.50 1.00 1.0 A) CH3CCHCH B) CICH2CCH2CH Cl D) CH3CCIH CIH2CI O D
25) Which of the following C4H OC1 compounds best fits the proton NMR spectrum shown below? (The numbers above the peaks are integration values.) Circle the letter of the correct answer. (2 Pts) CI Cl CI Cl 1.50 1.00 1.01
answer them all thanks Which of the following compounds fits the proton NMR shown below? ЗН 1.0 ppm A) CH,CH,CH_COCH B) CHỊCH COCHẠCH ) CH3COCH_CH.CH D) CH,CCH_CHOCH MacBook Air esc Identify the CAHgCl isomer given the following proton NMR data: doublet 8 1.04 (6H) multiplet 81.95 (1H) doublet o3.35 (21) A) (CH3),CCI B) CHCHCH-CH-CI C) CH3CHCHCH, D) (CH3),CHCH_CI Ос ОА Ma hybridized CH absorption in its mollion tion in c 72 and n o R etina 1725 m. Assume each...
Question 13 Which compounds can be used to prepare compound 2 in a single transformation? H3C O CH H3C H3C H3C H3C H3C он CH3 CH3 CH3 A. A B. B C.C D. D E. E
28. Use the following compounds to answer the questions below. If no compounds fit the description, write NA. (There could be more than one correct answer for each question. You only need to supply one. Wrong answers cancel right answers, so be careful!) H SH CH3 HS. H2C не H HS EH HS CH CH3 SH H3C HS H3C SH CH3 SH CH3 HSH CH3 SH CH3 TH toimint HT HH3C A B с D E i) A pair of...
Organic Which one of the following compounds fits the C-13 NMR spestrum shown belown TMS 180 160 140 120 CTH2 A) C) D) A) A B) B C)CD)D LI-There are four alcohols with the molecular formula C4H10。 bH CH: D CHCCH bH Which one produced the C-13 NMR spectrum below? 200 180 160 140 120 100 80 60 40 20 6ppm
14) Which of the following terms best describes the stereochemical relationship of compounds shown below in Fischer notation? Clationship of the two CH3 Cats H HCI BAH Cats CH3 A) enantiomers B) diastereomers C) constitutional isomers D) cis/trans - isomers E) meso - same structure 15y What term describes the structural relationship between cis-1.2-dimethylcyclopentane and trans-1,2-dimethylcyclopentane? A) not isomers B) constitutional isomers C) enantiomers D) diastereomers E) conformers 16) How many diastereomers are there of the molecule shown below? ÇOZH...
Which of the following shown below represent a pair of enantiomers? CN (a) Br HAC-C-CN (b) CO2H HC-Br HC-CH? Br HC-CN CO2H (c) (d) CO2H CH3 он H -OH HC-CH2CH3 CH3CH H3C CH3 -CO2H H H2N H3C CH H2N 2 o
7. Which compound below best fits the following spectral data? 8. How many signals would you expect to see in the broadband decoupled C^13 spectra of the following compounds? 9. If a proton gave an NMR signal at 3.2 ppm on a MHz NMR, what would the chemical shift be of this proton (in ppm) if the sample was run in 400 MHz NMR? 7. Which compound below best fits the following spectral data? (6 points) H-1 NMR 0.9 ppm...
14. Which of the following chiral compounds is(are) S enantiomer(s)? I. OH Hac H3C OH H3C ?CI H3C HC HCH2C HCH2C A) I B) II C) III D) I and II E) I and III "ci