Identify number of reagents that can be used for above conversion : - (a) $Zn (Hg) +$ conc. HCl (b) $CHCl_{3} + NaOH$ (c) $LiAlH_{4}$ (d) $NaBH_{4}$ (e) $N_{2} H_{4} + \overline{O} H$ (f) $SeO_{2}$ (g) $MnO_{2}$ (h)

Question

TestHub · Accepted Answer

The conversion of a ketone ( R − CO − R ) to an alkane ( R − C H 2 ​ − R ) represents a complete reduction of the carbonyl group. (a) Clemmensen Reduction: Z n ( H g ) + co n c . H Cl converts carbonyl compounds into alkanes under acidic conditions. (e) Wolff-Kishner Reduction: N 2 ​ H 4 ​ + O H − reduces aldehydes and ketones to alkanes under strongly basic conditions. (h) Mozingo Reduction: Dithiol forms a thioacetal, which is then cleaved by hydrogen gas over Raney nickel ( H 2 ​ / R an ey N i ) to form the alkane. Others: Reagents (c) and (d) reduce ketones to alcohols, while (b), (f), and (g) are not used for full reduction to alkanes.

Chemistry - Carbonyl compounds Question with Solution | TestHub

Doubts & Discussion