The reasonable structures for the compounds A and B that results from the bromination of 3-methyl-2-butanone are to be represented. Concept introduction: Aldehydes and ketones contain carbonyl ( C=O ) functional group in their parent chain. The halogenation of aldehyde or ketone takes place by the replacement of alpha proton to the carbonyl group by halogen. Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.

Question

Want to see the full answer?

Answer 1

Question

Chapter 21, Problem 38P

Interpretation Introduction

Interpretation:

The reasonable structures for the compounds A and B that results from the bromination of 3-methyl-2-butanone are to be represented.

Concept introduction:

Aldehydes and ketones contain carbonyl (C=O) functional group in their parent chain. The halogenation of aldehyde or ketone takes place by the replacement of alpha proton to the carbonyl group by halogen.

Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations.

Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

There are several isomeric alcohols and ethers of molecular formula C5H12O. Two of these exhibit the following 1H-NMR spectra. Propose a structure for each of the isomers. Isomer A: δ = 0.92 (t, 7.8 Hz, 3 H), 1.20 (s, 6H), 1.49 (q, 7.8 Hz, 2H), 1.85 (s, 1H) ppm Isomer B: δ = 1.19 (s, 9 H), 3.21 (s, 3H) ppm

When a compound with molecular formula C11H14O2 undergoes acid-catalyzed hydrolysis, one of the products that is isolated gives the following 1H NMR spectrum. Identify the compound.

An 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…