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- Reaction of p-cresol with two equivalents of 2-methylprop-1-ene affordsBHT, a preservative with molecular formula C15H24O. BHT gives thefollowing 1H NMR spectral data: 1.4 (singlet, 18 H), 2.27 (singlet, 3 H), 5.0(singlet, 1 H), and 7.0 (singlet, 2 H) ppm. What is the structure of BHT?Draw a stepwise mechanism illustrating how it is formed.Reaction of p-cresol with two equivalents of 2-methylprop-1-ene affords BHT, a preservative with molecular formula C15H24O. BHT gives the following 1H NMR spectral data: 1.4 (singlet, 18 H), 2.27 (singlet, 3 H), 5.0 (singlet, 1 H), and 7.0 (singlet, 2 H) ppm. What is the structure of BHT? Draw a stepwise mechanism illustrating how it is formed.Propose a structure for a C,H150,N compound that is unstable in aqueous acid and has the given NMR spectra. 'H NMR: 8 2.30 (6H, s); 8 2.45 (2H, d, J = 6 Hz); 8 3.27 (6H, s); 8 4.50 (1H, t, J = 6 Hz) 13C NMR: 8 46.3, 8 53.2, 8 68.8, 8 102.4 Draw C,H1502N. Select Draw Rings More C N APR étv N Aa MacBook Air
- Identify the following compound from its IR and proton NMR spectra. C,H1,0: 'H NMR 8 3.31 (3H, s); 8 2.41 (1H, s); & 1.43 (6H, s) IR: 2110, 3300 cm- (sharp)1. Given the following 'H NMR spectra. А. Draw structure of compound. В. Label peaks (Ha, Hb, He, etc.) and indicate multiplicity Acetamide 11 10 7 6 5 4 3 1 ppm HSP-04-989 N. 001. Show how you would distinguish among the following three isomers (7 pts) vol or ol H OCH3 OH H3CO HO H3C (a) (b) (c) a) Using ¹H NMR spectroscopy and no other information. (4 pts) b) Using ¹³C NMR, including DEPT, and no other information.(3 pts)
- IH NMR spectrum of methyl-m-nitrobenzoate 'H nmr , 8: 8.86 (t, IH), 8.42(dd, IH), 8.37 (dd, IH). 7.67 (t, IH), 4.01(s, 3H). [t - triplet, dd - doublet of doublet, s- singlet] IR spectrum of methyl-3-nitrobenzoateA substituted styrene derivative has the following 'H NMR data: 1H NMR (CDCI3, 400 MHz) 8 8.37 (d, 2H), 8.03(d, 2H), 6.86 (dd, 1H), 6.05 (d, 1H), 5.55 (d, 1H). The structure of styrene itself is C6HsCH=CHz. Which styrenederivative is it? which one is it 2-Fluorostyrene2-Nitrostvrene4-Fluorostyrene 3-Hydroxystyrene4-NitrostyrenePropose a structure consistent with each set of data. molecular ion at 72; IR peak at 1710 cm−1; 1H NMR data (ppm) at 1.0 (triplet, 3 H), 2.1 (singlet, 3 H), and 2.4(quartet, 2 H)
- C. NMR Problems 1. Compound M (CSH100) readily decolorizes Br2 in CCI4 and is converted to compound N (C;H120) by H2/Ni. The 'H NMR spectrum for M is shown below. The 13C NMR spectrum of M has signals at 146.1, 110.8, 71, and 29.4. Deduce the structures of M and N. Cs Hioo CampM Checa SuA compound with molecular formula C5H10Br2 displays the following 13C NMR along with the DEPT-90 and DEPT-135 13CNMR spectra. What is the structure for this compound?Propose a structure consistent with each set of data. molecular ion at 88; IR peak at 3600-3200 cm−1; 1H NMR data (ppm) at 0.9 (triplet, 3 H), 1.2 (singlet, 6 H), 1.5 (quartet, 2 H), and 1.6 (singlet, 1 H)