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How would you do the following conversio...

How would you do the following conversions in noit more than two steps?
(i) Propanone to Propene
(ii) Propanal to Butaonone
(iii) Ethanol to 3-Hydroxybutanol
(iv) Benzaldehyde to Benzophenone
(v) Benzaldehyde to `alpha`-Hydroxyphenylacetic acid
(vi) Benzaldehyde to 3-Phenylpropan -1-ol

Text Solution

Verified by Experts

(a) `CH_(3)COCH_(3)overset(LiAlH_(4))toCH_(3)overset(OH)overset(|)CH-CH_(3)overset(H^(+),453K)toCH_(3)CH=CH_(2)`
(b) `CH_(3)CH_(2)CHOoverset(CH_(3)MgBr)underset(H_(3)O^(+))toCH_(3)-CH_(2)-overset(OH)overset(|)CH-CH_(3)overset(K_(2)Cr_(2)O_(7)//H^(+))toCH_(3)CH_(2)overset(O)overset(||)C-CH_(3)`
( c) `CH_(3)CH_(2)OHoverset([O])tounderset("2 moles")(CH_(3)CHO)overset(OH^(-))underset("Aldol condensation")toCH_(3)-overset(OH)overset(|)CH-CH_(2)CHO`
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