(a)
Interpretation:
On the basis of
Concept introduction:
Carboxylic acid is a class of organic compound that contains a
(b)
Interpretation:
On the basis of proton NMR, the compounds
Concept introduction:
Carboxylic acid is a class of organic compound contains a
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Organic Chemistry
- Interpret the 1H NMR spectrum of Indole-3-Carboxaldehydearrow_forwardElucidate the structure using the 1H and 13C NMR data.arrow_forwardAn aromatic compound K, whose molecular formula is C8H11N, is examined in the laboratory to elucidate its structure. The following observations were made: A) Compound K is soluble in dilute hydrochloric acid but insoluble in sodium hydroxide solution. B) Treatment of compound K with excess potassium hydroxide and benzenesulfonyl chloride, C(6)H(5)SO(2)Cl, results in the formation of a heterogeneous mixture. The NMR spectrum of compound K is shown below. C) Compound K when treated with acetic anhydride[CH3-C(O)-O-C(O)-CH3], gives compound L, whose molecular formula is C(10)H(13)ON. Compound L is insoluble in dilute acid or dilute base at room temperature, heating compound L in dilute acid or base, however, regenerates compound K. D) When compound L is heated with a mixture of concentrated nitric acid and sulfuric acid, a single product, compound M, with the molecular formula C(10)H(12)O(3)N(2) is formed in excellent yields. On the basis of these observations draw the structures of…arrow_forward
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- 3 The 1H- and 13C-NMR data of an ester of molecular formula C6H10O2 are given below. Also shown are the COSY and HETCOR NMR spectra of the ester. Identify the ester, explaining how you reach your conclusion. 1H-NMR: 7.20-6.90 (1H), 5.85 (1H), 4.16 (2H), 1.88 (3H), 1.31 (3H) ppm 13C-NMR: 166.7, 144.5, 123.0 , 60.2, 18.0, 14.3 ppmarrow_forwardDiscuss the functional groups identified in this NMR spectrum of Methyl-4-amino-benzoatearrow_forwardCompare the 13C NMR spectra of isoborneol and camphor. Explain which peaks can be used to determine whether the oxidation was successful. Propose a mechanism for this oxidation. To simplify the structures, use benzyl alcohol to draw the mechanism instead of isoborneol. Include the formation of any byproduct(s) in the mechanism.arrow_forward