With the aid of the mechanism of the reaction sequence, what are the structures of compounds A, B, and C in the series of reactions?  C6H5C(CH3)2CH2COOH       +          PCl3         ---->    A(C11H13OCl) A          +                    AlCl3/CS2                          ---->     B(C11H12O) B     +    N2H4,  OH-, heat, high boiling solvent    ---->     C(C11H12O)

Organic Chemistry
9th Edition
ISBN:9781305080485
Author:John E. McMurry
Publisher:John E. McMurry
Chapter11: Reactions Of Alkyl Halides: Nucleophilic Substitutions And Eliminations
Section11.SE: Something Extra
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With the aid of the mechanism of the reaction sequence, what are the structures of compounds A, B, and C in the series of reactions? 

C6H5C(CH3)2CH2COOH       +          PCl3         ---->    A(C11H13OCl)

A          +                    AlCl3/CS2                          ---->     B(C11H12O)

B     +    N2H4,  OH-, heat, high boiling solvent    ---->     C(C11H12O)

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2) Compound C gave the following proton NMR signals:

a) singlet,1.22 ppm, 6H;

b) Triplet, 1.85 ppm, 2H, J = 7 Hz;

c) triplet, 2.83 ppm, 2H, J = 7 Hz;

d) singlet, 7.02 ppm, 4H.

Sketch the proton NMR spectrum of compound C and assign the chemical shifts to the protons of the compounds.

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