Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is :

  • Option 1)

    a Grignard reagent

  • Option 2)

    hydrazine in presence of feebly acidic solution

  • Option 3)

    hydrocyanic acid

  • Option 4)

    sodium hydrogen sulphite

 

Answers (1)

As we dicussed in concept ID

Addition of ammonia and its derivatives with aldehydes and ketones -

Product formation is favoured due to rapid dehydration of the intermediate to form  > C = NG

G\:\:may\:be\:\:-OH,\:\:-NH_{2},\:\:-NHC_{6}H_{5},\:\:-NHCONH_{2},\:\:etc

- wherein

 

 


Option 1)

a Grignard reagent

This option is incorrect

Option 2)

hydrazine in presence of feebly acidic solution

This option is correct

Option 3)

hydrocyanic acid

This option is incorrect

Option 4)

sodium hydrogen sulphite

This option is incorrect

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