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Dehydration of Alcohols

Show how will...

Question

Show how will you synthesise:
1-phenylethanol form a suitable alkene.

Cyclohexylmethanol using an alkyl halide by an $S_{N} 2$ reaction

Pentan-1-ol using a suitable alkyl halide?

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Solution

$C_{6} H_{5} - H C \begin{matrix} E t h e n y l b e n z e n e (S t y r e n e) \end{matrix} = C H_{2} + H_{2} O D i l . H_{2} S O_{4} - ---------- \to \begin{matrix} M a r k o w n i k o f f^{'} s r u l e \end{matrix} C_{6} H_{5} - 1 C H | O H 1 - p h e n y l e t h a n o l - 2 C H_{3}$

$5 C H_{3} 4 C H_{2} 3 C H_{2} 2 C H_{2} 1 - b r o m o p e n t a n e 1 C H_{2} B r + K O H (a q) \to 5 C H_{3} 4 C H_{2} 3 C H_{2} 2 C H_{2} P e n t a n - 1 - o l 1 C H_{2} O H + K B r$

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Similar questions

Q. Show how will you synthesise:
(i) 1-phenylethanol from a suitable alkene.
(ii) cyclohexylmethanol using an alkyl halide by an

S_{N} 2

reaction.
(iii) pentan-1-ol using a suitable alkyl halide.

Q. Show how will you synthesize:

(i) Cyclohexylmethanol using an alkyl halide by

S_{N} 2

reaction.
(ii) Pentan-1-ol using a suitable alkyl halide.
(iii) 1-phenylethanol from a suitable alkene.

Q. Show how will you synthesise:

Propan-1-ol using a suitable alkyl halide.

Q. An alkyl halide may be converted into an alkene by which of the following reaction ?

Q. Assertion :Wurtz's coupling reaction of alkyl halide is not suitable for an alkane containing an odd number of carbons in the parent chain. Reason: Wurtz's coupling reaction involves heating of alkyl halides with sodium metal in dry ether.

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Dehydration of Alcohols

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