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Diborane

Write the mai...

Question

Write the main products of the following reactions :
(i) $C_{6} H_{5} N_{2}^{+} C l^{-} H_{3} P O_{2} + H_{2} O - ------- \to ?$

(iii) $C H_{3} - C | | O - N H_{2}^{\cdot} B r_{2} + N a O H - ------ \to ?$

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Solution

(i) $C_{6} H_{5} N_{2}^{+} C l^{-} H_{3} P O_{2} + H_{2} O - ------- \to C_{6} H_{6}$
This is an example of substitution in diazonium salts. Since $N_{2}^{+}$ is a very good leaving group, diazonium salts are unstable and usually decompose to give favourable products.

$- N H_{2}$ is an ortho, para directing group. So when we use Bromine water, we get a tribromo substituent of aniline.
(iii) $C H_{3} - O | | C - N H_{2} B r_{2} + K O H - ------ \to C H_{3} N H_{2}$
This reaction is called Hoffman's Bromamide Degradation. It is used to create nC to (n-1)C molecules.

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Similar questions

C_{6} H_{5} N_{2}^{+} C l^{-} H_{3} P O_{2} + H_{2} O - ------- \to

C H_{3} C H_{2} N H_{2} + C H C l_{3} + a l c . K O H \to

C_{6} H_{5} N_{2}^{+} C l^{-} H_{2} O - -------- \to (Room Temp.)

C H_{3} C H_{2} N H_{2} + C H C l_{3} + a l c . K O H \to

C_{6} H_{5} N_{2}^{+} C l^{-} w a t e r - ----- \to r o o m T e m p .

(C_{6} H_{5} N_{2}^{+} C l^{-})

C u C N / K C N

(i i) H_{2} O

(i i i) C H_{3} C H_{2} O H

(i) C_{2} H_{5} N H_{2}, C_{2} H_{5} O H, (C H_{3})_{3} N

Write structures of the products of the following reactions:

(i)

(ii)

(iii)

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