Propose all possible structures for a compound with molecular formula C4H9N that shows two medium absorptions at 3400 cm¹ andno absorption in the range of 1600 - 1800 cm¹ in its IR spectrum.OINH2NH2O IIIOland IIOI, II, III, and IV11IIINH2-NH2IV

All of them could be the possible structure for the molecular formula C4H9N. The two medium…

Answered: Propose all possible structures for a…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Draw the structure of a compound, C4H8O3 that exhibits IR absorptions at 1710 and 2500-3000 cm-1 and thefollowing 1H NMR signals: 11.1 (1H, singlet), 4.14 (2H, singlet), 3.63 (2H, quartet), 1.26 (3H, triplet) ppm.
An compound that has a molecular formula of C5H11NO, has the below 1H NMR spectrum which is showen in the picture. There is a strong single peaked absorption at 3400 and 1710 cm-1and there are couple of mdium peaks between 2800 and 3000 cm-1. Which of the options below is more consistent with this spectrum?
Propose a structure consistent with each set of data Compound A: Molecular formula: C8H10OIR absorption at 3150−2850 cm−11H NMR data: 1.4 (triplet, 3 H), 3.95 (quartet, 2 H), and 6.8–7.3(multiplet, 5 H) ppm
Reaction of C6H5CH2CH2OH with CH3COCl affords compound W, whichhas molecular formula C10H12O2. W shows prominent IR absorptions at3088–2897, 1740, and 1606 cm−1. W exhibits the following signals in its1H NMR spectrum: 2.02 (singlet), 2.91 (triplet), 4.25 (triplet), and 7.20–7.35(multiplet) ppm. What is the structure of W?
Treatment of alcohol A (molecular formula C5H12O) with CrO3, H2SO4, and H2O affords B with molecular formula C5H10O, which gives an IR absorption at 1718 cm−1. The 1H NMR spectrum of B contains the following signals: 1.10 (doublet, 6 H), 2.14 (singlet, 3 H), and 2.58 (septet, 1 H) ppm. What are the structures of A and B?
An unknown compound (C3H2NCl) shows moderately strong IR absorptions around1650 cm-1and 2200 cm-1. Its NMR spectrum consists of two doublets (J = 14 Hz) atd5.9 and d7.1. Propose a structure consistent with these data
Reaction of butanenitrile (CH3CH2CH2CN) with methylmagnesium bromide (CH3MgBr), followed by treatment with aqueous acid, forms compound G. G has a molecular ion in its mass spectrum at m/z = 86 and a base peak at m/z = 43. G exhibits a strong absorption in its IR spectrum at 1721 cm−1 and has the 1H NMR spectrum given below. What is the structure of G?
Reaction of butanenitrile (CH3CH2CH2CN) with methylmagnesium bromide (CH3MgBr), followed by treatment with aqueous acid, forms compound G. G has a molecular ion in its mass spectrum at m/z = 86 and a base peak at m/z = 43. G exhibits a strong absorption in its IR spectrum at 1721 cm−1 and has the 1H NMR spectrum given below. What is the structure of G? We will learn about the details of this reaction in Chapter 22.
A compound with molecular mass 114 and in IR spectrum, absorption bands are formed at 1770 cm¹ (s), 1650 cm-¹ (m) and 1200 cm¹ (w). In ¹H NMR six signals are observed, 8 1.0 (t, 3H), 1.7 (m 2H), 2.4 (t, 2H), 4.6 (d, 1H), 4.9 (d, 1H), 7.4 (d, 1H). Predict the molecular structure of the unknown compound and justify your answer.
The 'H NMR spectrum of compound A (C3H100) has four signals: a multiplet at 8 = 7.25-7.32 ppm (5 H), a singlet at d = 5.17 ppm (1 H), a quartet at d = 4.98 ppm (1 H), and a doublet at ô = 1.49 ppm (3 H). There are 6 signals in its 13C NMR spectrum. The IR spectrum has a broad absorption in the -3200 cm-1 region. Compound A reacts with KMNO4 in a basic solution followed by acidification to give compound B with the molecular formula C7H6O2. Draw structures for compounds A and B.
Treatment of compound D with LiAlH4 followed by H2O forms compound E. D shows a molecular ion in its mass spectrum at m/z = 71 and IR absorptions at 3600–3200 and 2263 cm−1. E shows a molecular ion in its mass spectrum at m/z = 75 and IR absorptions at 3636 and 3600–3200 cm−1. Propose structures for D and E from these data and the given 1H NMR spectra.
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Propose all possible structures for a compound with molecular formula C4H9N that shows two medium absorptions at 3400 cm¹ and no absorption in the range of 1600 - 1800 cm¹ in its IR spectrum. OI NH2 NH2 O III Oland II OI, II, III, and IV 11 III NH2 -NH2 IV