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Question

CH3CH=CHCN(a)DIBALH−−−−−−−−(b)H2O?

Write the product(s) in the given reactions:

625176_ab74b4385b6549199e5f6b8085d50ab9.png

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Solution

The products of the reaction are as shown.
(i) Cyclohexanone reacts with HCN to form 1hydroxycyclohexanecarbonitrile. A molecule of HCN is added to C=O double bond.
(ii) When sodiumbenzoate is heated with NaOH+CaO, benzene is formed. It is an example of decarboxylation.
(iii) DIBALH reduces but2enenitrile to but2enal. Cyano group is reduced to aldehyde group. C=C double bond remains intact.
663766_625176_ans_bc351799416f45af8dd1f63cba01907a.png

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