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  • Whar is the product formed during the reaction given below: 

Whar is the product formed during the reaction given below: 

CH\equiv CH+\underset{(2\ eq.)}{HOCl}\overset{0\degree C}{\longrightarrow} 

Option: 1

1,2-dichloroethane


Option: 2

2,2-dichloroethanal


Option: 3

1,2-dichloroethene


Option: 4

1,2-dichloroethyne


Answers (1)

best_answer

As we have learnt,

Addition of Hypochlorous acid
Alkynes when passed into hypochlorous acid solution, add two equivalents of the reagent to form an \alpha,\alpha dichloro carbonyl compound. The reaction occurs as follows



 

With HOCl, acetylene undergoes addition as depicted below

HC\equiv CH+2HOCl{\longrightarrow} HCO-CH(Cl)_2

Therefore, option (4) is correct.

Posted by

seema garhwal

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