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Synthesis of Ethers

Write the nam...

Question

Write the names of reagents and equations for the preparation of the following ether by Williamson's synthesis.
1-propoxypropane

Ethoxybenzene

2-methoxy-2-methylpropane

1-methoxyethane

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Solution

$C H_{3} C H_{2} C H_{2} O^{-} N a^{+} S o d i u m p r o p o x i d e + C H_{3} C H_{2} C H_{2} - B r 1 - b r o m o p r o p a n e H e a t - -- \to C H_{3} C H_{2} C H_{2} - O - C H_{2} C H_{2} C H_{3} 1 - p r o p o x y p r o p a n e + N a B r$

$C H_{3} C H_{3} C H_{3} - | C | - O N a + C H_{3} - B r B r o m o m e t h a n e H e a t - -- \to C H_{3} - | C | - O C H_{3} + N a B r C H_{3} S o d . t e r t - b u t y l - a l k o x i d e C H_{3} 2 - m e t h o x y - 2 - m e t h y l p r o p a n e$

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Similar questions

Write the names of reagents and equations for the preparation of the following ethers by Williamson’s synthesis:

(i) 1-Propoxypropane

(ii) Ethoxybenzene

(iii) 2-Methoxy-2-methylpropane

(iv) 1-Methoxyethane

Write the equation of the reaction of hydrogen iodide with:

(i) 1-propoxypropane

(ii) Methoxybenzene and

(iii) Benzyl ethyl ether

Write the equation of the reaction of hydrogen iodide with:

I-propoxypropane

Methoxybenzene

Benzyl ethyl ether

Q. (a) Write the IUPAC name and structural formula of methyl n-propyl ether.
(b) Give equations for preparation of ether by the following reactions:
(i) dehydration of alcohols
(ii) Williamson synthesis.
(c) Write the resonance structures of alkoxy benzene.

Allanite wanted to prepare (R) 2-Methoxy butane using Williamson ether synthesis. He remembered that Williamson synthesis involves a

S_{N} 2

displacement, which takes place with inversion of configuration. He ordered a bottle of (S) 2-Butanol for his chiral starting material. He also remembered that the

S_{N} 2

goes best on primary halides so he made methyl halide and sodium (S) 2-butoxide after warming these reagents together he obtained an excellent yield of 2-Methoxy butane.

2-Methoxy butane

a n h y d r o u s H I - ------- \to

Products formed are:

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Synthesis of Ethers

Standard XII Chemistry

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