Convert: (i) 3-phenyl-1-propanol to 3-phenyl-1-propanal.
(ii) isopropyl alcohol to acetone.

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Solution

$(i)$ The conversion of $3 - p h e n y l - 1 - p r o p a n o l$ to $3 - p h e n y l - 1 - p r o p a n a l$ is shown in IMAGE $01$ .
$(i i)$ The conversion of isopropyl alcohol to acetone has been studied over $C r_{2} O_{7}$ power at $473$ $K$ in a microcatalytic reactor.

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\begin{matrix} a. & Addition of benzyl Grignard reagent to acetaldehyde (ethanal), followed by hydrolysis. b. & Addition of phenyl lithium to propylene oxide (methyloxirane), followed by hydrolysis. c. & Addition of phenyl Grignard reagent to acetone (2- propanone) followed by hydrolysis. d. & Acid- catalysed hydration (addition of water to) of 2-Phenyl-1- propene. e. & Addition of methyl Grignard reagent to acetophenone (methyl phenyl ketone), followed by hydrolysis. f. & Addition of methyl Grignard reagent to phenylacetaldehyde, followed by hydrolysis. \end{matrix}

How will you bring about the following conversion in not more than two steps?
Propanone to propene

Benzoic acid to benzaldehyde

Ethanol to 3-hydroxy butanal

Benzene to m-ntroacetophenone

Benzaldehyde to benzophenone

Bromobenzene to l-phenylethanol

Benzaldehyde to 3-phenyl propan-1-ol

Benzaldehyde to $α$ -hydroxy phenyl acetic acid

Benzoic acid to m-nitrobenzyl alcohol

I_{2} + N a O H

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