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How will you preform the following conve...

How will you preform the following conversions?
(i) Acetaldehyde to acetone
(ii) Propanone to propene
(iii) Propene to propanone
(iv) Benzaldehyde to benzophenone
(v) Benzene to acetophenone

Text Solution

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(i) Acetaldehyde to acetone
`CH_(3)CHOoverset([O])underset(K_(2)Cr_(2)O_(7)//H^(+))toCH_(3)COOHoverset(Ca(OH)_(2))underset(Delta)to(CH_(3)COO)_(2)Caoverset(Delta)underset(-CaCO_(3))toCH_(3)COCH_(3)`
(ii) Propanone to propene
`CH_(3)COCH_(3)overset(LiAlH_(4))toCH_(3)-overset(OH)overset(|)(CH)-CH_(3)overset("conc."H_(2)SO_(4))underset(Deltat)toCH_(3)CH=CH_(2)`
(iii) Propene to propanone
`CH_(3)CH=CH_(2)overset(H_(2)O //H^(+))toCH_(3)-overset(OH)overset(|)(CH)-CH_(3)overset(K_(2)Cr_(2)O_(7)//H^(+))toCH_(3)-overset(O)overset(||)(C)-CH_(3)`
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