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Give structures of the products you would expect when each of the following alcohol reacts with (a) HCl-ZnCl2 (b) HBr and (c) SOCl2.
(i) Butan-1-ol
(ii) 2-Methylbutan-2-ol
(a)
(i)
Primary alcohols do not react appreciably with Lucas’ reagent (HCl-ZnCl2) at room temperature.
(ii)
Tertiary alcohols react immediately with Lucas’ reagent.
(b)
(i)
(ii)
(c)
(i)
(ii)
Predict the major product of acid catalysed dehydration of
(i) 1-Methylcyclohexanol and
(ii) Butan-1-ol
(i)
(ii)
Ortho and para nitrophenols are more acidic than phenol. Draw the resonance structures of the corresponding phenoxide ions.
Resonance structure of the phenoxide ion
Resonance structures of p-nitrophenoxide ion
Resonance structures of o-nitrophenoxide ion
It can be observed that the presence of nitro groups increases the stability of phenoxide ion.
Write the equations involved in the following reactions:
(i) Reimer-Tiemann reaction
(ii) Kolbe’s reaction
Reimer-Tiemann reaction
Kolbe’s reaction
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