Which one of the following on reduction with lithium aluminium hydride yield a secondary amine:

Question

Which one of the following on reduction with lithium aluminium hydride yield a secondary amine: (A) Methyl isocyanide (B) Acetamide (C) Methyl cyanide (D) Nitroethane

Tardigrade Admin · Accepted Answer

CH3 - N ≡ C + 4 [H] xrightarrow LiAIH4 CH3 NHCH3 Dimethylamine On catalytic reduction or with lithium aluminium hydride (LiAlH4) or with nascent hydrogen, alkyl isocyanide yield 2° amine whereas cyanide gives 1° amine on reduction.

Q. Which one of the following on reduction with lithium aluminium hydride yield a secondary amine:

Methyl isocyanide

Acetamide

Methyl cyanide

Nitroethane

$C H_{3} - N \equiv C + 4 [H] L i A I H_{4} C H_{3} N H C H_{3}$

Dimethylamine On catalytic reduction or with lithium aluminium hydride $(L i A l H_{4})$ or with nascent hydrogen, alkyl isocyanide yield $2^{\circ}$ amine whereas cyanide gives $1^{\circ}$ amine on reduction.

Q. Which one of the following on reduction with lithium aluminium hydride yield a secondary amine:

Methyl isocyanide

Acetamide

Methyl cyanide

Nitroethane

CH3​−N≡C+4[H]LiAIH4​​CH3​NHCH3​ Dimethylamine On catalytic reduction or with lithium aluminium hydride (LiAlH4​) or with nascent hydrogen, alkyl isocyanide yield 2∘ amine whereas cyanide gives 1∘ amine on reduction.

$C H_{3} - N \equiv C + 4 [H] L i A I H_{4} C H_{3} N H C H_{3}$

Dimethylamine On catalytic reduction or with lithium aluminium hydride $(L i A l H_{4})$ or with nascent hydrogen, alkyl isocyanide yield $2^{\circ}$ amine whereas cyanide gives $1^{\circ}$ amine on reduction.