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Preparation of Alcohols from Alkenes

How will you ...

Question

How will you convert:
(i) Propene to propan $- 1 -$ ol?
(ii) Ethanal to propan-2-ol?

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Solution

(i) $C H_{3} C H = C H_{2} p r o p e n e + H B r p e r o x i d e - ---- \to C H_{3} C H_{2} C H_{2} B r + K O H (a q) Δ - \to C H_{3} C H_{2} C H_{2} O H p r o p a n - 1 - o l$

(ii) $C H_{3} C H = O E t h a n a l C H_{3} M g I - ---- \to C H_{3} C H (O M g I) C H_{3} H^{+}, H_{2} O - ---- \to C H_{3} C H (O H) C H_{3} p r o p a n - 2 - o l$

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Similar questions

Q. How will you convert:
(i) Propene to Propan-2-ol?
(ii) Phenol to 2,4,6-trinitrophenol?

Q. Propan-1-ol cannot be prepared by acid catalysed hydration of propane, then how is propene converted into propan-1-ol?

Q. How will you distinguish between the following pairs? Write chemical reactions.

C H_{3} O H

C_{2} H_{5} O H

(ii)Propan-1-ol and propan-2-ol

(iii)Propan-1-ol and 2-methylpropan-2-ol

(iv)Ethanol and propane-1-ol

Q. (a) How will you convert the following:
(i) Propanone to Propan

- 2 - o l

(ii) Ethanal to

2 -

hydroxy propanoic acid
(iii) Toluene to benzoic acid
(b) Given simple chemical test to distinguish between:
(i) Pentan-

2

P e n t a n - 3 - o n e

(ii) Ethanal and Propanal

How are the following conversions carried out?

(i) Propene → Propan-2-ol

(ii) Benzyl chloride → Benzyl alcohol

(iii) Ethyl magnesium chloride → Propan-1-ol.

(iv) Methyl magnesium bromide → 2-Methylpropan-2-ol.

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