Question

Which one of following on reduction with lithium aluminium hydride yields a secondary amine ? .
A. Methy1 cyanide
B. Nitroethane
C. Methy1 isocyanide
D. Acetamide

Answer 1

Correct Answer - C
With `LiAIH_(4)` as well as on catalytic hydrogenation isocyanides arwe reduced to N-methylamines
`RNC overset(LAH)rarrRNHCH_(3)`
`underset("Methylisocyanide")(CH_(3bar)overset(+)N-=barC):overset(LAH)rarrCH_(3)underset("20 amine")(NHCH_(3))` .