18) For the following pairs of isomers, use the suggested spectroscopic technique to distinguish between he structures. Be specific and justify your choice. First one is solved A: 5 signals in H-NMR,...
18) For the following pairs of isomers, use the suggested spectroscopic technique to distinguish between he structures. Be specific and justify your choice. First one is solved A: 5 signals in H-NMR, doublet, hep tet, H-NMR: 2H) (heptet, 2H) triplet, pent and riplet trip let IH) B: 3 signals in H-NMR, dou blet, heptet and singlet sing let (pentet, (triplet, 3H 2H) (doublet, 12H) (doublet, 12H) 3C-NMR: NH HN IR HO 0
18) For the following pairs of isomers, use the suggested spectroscopic technique to distinguish between he structures. Be specific and justify your choice. First one is solved A: 5 signals in H-NMR, doublet, hep tet, H-NMR: 2H) (heptet, 2H) triplet, pent and riplet trip let IH) B: 3 signals in H-NMR, dou blet, heptet and singlet sing let (pentet, (triplet, 3H 2H) (doublet, 12H) (doublet, 12H) 3C-NMR: NH HN IR HO 0