In the following sequence of reactions- CH3CH2OHABCD- then compound D is-

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Reaction with Diazonium Salts

In the follow...

Question

In the following sequence of reactions, $C H_{3} C H_{2} O H P + I_{2} - -- \to A M g - -- \to e t h e r B H C H O - --- \to C H_{2} O - - \to D$ , then compound $D$ is:

butanal

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n-butyl alcohol

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n-propyl alcohol

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propanal

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Solution

The correct option is B n-propyl alcohol
When ethanol is treated with a mixture of phosphorus and iodine, ethyl iodide ${C H}_{3} {C H}_{2} I$ is obtained.

Compound $A$ on reaction with $M g$ metal in ether forms ethyl magnesium iodide $C H_{3} C H_{2} M g I$ .

The compound $B$ reacts with fomaldehyde to form compound $C$ $C H_{3} C H_{2} - C H_{2} - O M g X$ which on hydrolysis gives n propyl alcohol $C H_{3} C H_{2} C H_{2} - O H$ .

The compound $D$ is n-propyl alcohol.

Hence, option C is correct.

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In the following sequence of reactions, CH3CH2OHP+I2−−−→AMg−−−→etherBHCHO−−−−→CH2O−−→D, then compound D is:

In the following sequence of reactions, $C H_{3} C H_{2} O H P + I_{2} - -- \to A M g - -- \to e t h e r B H C H O - --- \to C H_{2} O - - \to D$ , then compound $D$ is: