Which is the appropriate reagent for the given transformation

Question

Which is the appropriate reagent for the given transformation <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/c-mwq768fhoaduqnzb.jpg" /> (A) Zn(.Hg.),HCl (B)  textNH text2 textNH text2 text, textOH- (C) H2/Ni (D) NaBH4

Tardigrade Admin · Accepted Answer

Both Zn(.Hg.),HCl and NH2NH2,OH- can reduce -COCH3 group to -CH2-CH3 group, but HCl will also bring about protonation of alcohol to form alkyl halide. Therefore, appropriate reagent for the conversion is NH2NH2,OH- .

Q. Which is the appropriate reagent for the given transformation

$Z n (H g), H Cl$

$NH_{2} NH_{2}, OH^{-}$

$H_{2} / N i$

$N a B H_{4}$

Both $Z n (H g), H Cl$ and $N H_{2} N H_{2}, O H^{-}$ can reduce $- COC H_{3}$ group to $- C H_{2} - C H_{3}$ group, but HCl will also bring about protonation of alcohol to form alkyl halide. Therefore, appropriate reagent for the conversion is $N H_{2} N H_{2}, O H^{-}$ .

Q. Which is the appropriate reagent for the given transformation

Zn(Hg),HCl

NH2​NH2​,OH−

H2​/Ni

NaBH4​

Both Zn(Hg),HCl and NH2​NH2​,OH− can reduce −COCH3​ group to −CH2​−CH3​ group, but HCl will also bring about protonation of alcohol to form alkyl halide. Therefore, appropriate reagent for the conversion is NH2​NH2​,OH− .

$Z n (H g), H Cl$

$NH_{2} NH_{2}, OH^{-}$

$H_{2} / N i$

$N a B H_{4}$

Both $Z n (H g), H Cl$ and $N H_{2} N H_{2}, O H^{-}$ can reduce $- COC H_{3}$ group to $- C H_{2} - C H_{3}$ group, but HCl will also bring about protonation of alcohol to form alkyl halide. Therefore, appropriate reagent for the conversion is $N H_{2} N H_{2}, O H^{-}$ .