A compound reacts with phenylhydrazine, H₂NNHC6H5, to give a phenylhydrazone. The compound has a proton spectrum with peaks at 8 7.20 (5H, broad singlet), 8 3.68 (2H, singlet) and 8 2.14 (3H, singlet). Which structure fits the data? c.) H d.)
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Select the best answer. Briefly explain the selection. A mechanism is an acceptable explanation.
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- Propose a structure for the 1H NMR below and assign the peaks in the proposed structure.What is the structure of an unknown compound with molecular formula C6H15N that gives the following 1H NMR absorptions: 0.9 (singlet, 1 H), 1.10 (triplet, 3 H), 1.15 (singlet, 9 H), and 2.6 (quartet, 2 H) ppm?What is the 1H NMR data (chemical shift, integration, multiplicty) of hte compound shown below?
- 1) Propose the structures for the following 1H and 13C NMR spectrum. b) Molecular Formula: C8H8O3 1H-NMR, CDCl3 Solvent, Molecular Formula: C8H8O3 13C-NMR, CDCl3 Solvent, Molecular Formula: C8H8O3 in the picturesA compound contains only C, H and O. The mass spectrum shows peaks at m/z = 58 and 43. What is the structure of the compound?1H NMR spectrum is shown below. Is it an ester found in wintergreen oil or an ester that is commonly used as a pain reliever. Both esters can be made from salicylic acid. Based on this information, determine the structure/identity of the ester corresponding to Spectrum 1.
- Which structure is in agraement with both of thasa R and H NMA data? IR, cm (Intensity)-2965 (strong), 1745 (strong), 1238 (strong) H NMR, ppm (splitting, H): 0.94 (doublet, 6H), 193 (multiplet, 1H), 2.05 (singlet, 3H), 3.8as (doublet, 2H) A. tor B. D. C.Molecular formula of an unknown compound is, C10H14O. Proton NMR: 1.3 (6H, doublet), 3.2 (1H septet), 4.6 (1H singlet), 2.25 (3H, singlet) 6.7 (1H, singlet), 6.9 (1H, doublet), 7.2 (1H, doublet). What is the name of an unknown compound? 2-isopropyl-5-methylphenol 2-(p-tolyl)propan-2-ol 1-isopropyl-4-methoxybenzene 4-isopropylphenyl)methanol1) Propose the structures for the following 1H and 13C NMR spectra. a) Molecular Formula: C5H10O2 1H-NMR, CDCl3 Solvent, Molecular Formula: C5H10O2 13C-NMR, CDCl3 Solvent, Molecular Formula: C5H10O2 in the pictures
- Following are the 'H and 13C NMR spectra for each of three isomeric ketones with formula C7H14O. Determine a structure to each pair of spectra and assign each H and C. Carbon spectrum А C,H140 Carbon spectrum В C;H140 CDCI3 200 150 100 50 Proton spectrum CDC13 A C,H140 200 150 100 50 1.96 2.00 2.91 3.0 2.5 2.0 1.5 1.0 0.5 0.0 211.04 -44.79 –17.39 – 13.78 -218.40 - 38.85 –18.55Which compounds (A-F) match with the corresponding IR spectrums (1-2)?(3) These natural compounds will have different numbers of 1H-NMR signals in different NMR solvents like CDC13 and methanol-d4. How many signals do you anticipate for each compound respectively in CDC13 and methanol-d4? LOCH 3 OHC. vanillin OH LOH acetoaminophen HO thymol