
$(A)$ $X = COOCH _3, Y = H _2 /$ Ni/heat
$(B)$ $X = CONH _2, Y = H _2 /$ Ni/heat
$(C)$ $X = CONH _2, Y = Br _2 / NaOH$
$(D)$ $X = CN , Y = H _2 /$ Ni/heat
image$\mathop {\xrightarrow{{NaN{O_2}}}}\limits_{HCl} A\,\,\xrightarrow{{CuCN}}B\,\,\mathop {\xrightarrow{{{H_2}}}}\limits_{Ni} C\,\,\xrightarrow{{HN{O_2}}}D$
Major product
Figure $\xrightarrow[{0\, - \,5\,\,{\,^o}C}]{{HN{O_2}}}$ $P$ $\xrightarrow{{HB{F_4}}}Q$ $\xrightarrow[{Cu,\,\,\Delta }]{{NaN{O_2}}}R$


