Составить цепочку превращений! 1.a + nanh2 = b + nh3 2.b + ch3br = c + nabr 3.c + h2 = d 4. d + o3 + h2o = c2h40 + h2o2

1. H3C-C≡CH (a) + NaNH2 = H3C-C≡CNa (b) + NH3;

2. H3C-C≡CNa + Br-CH3 = H3C-C≡C-CH3 (c) + NaBr;

3. H3C-C≡C-CH3 + H2 = H3C-CH=CH-CH3 (d);

4. H3C-CH=CH-CH3 + O3 + H2O = 2H3C-CHO + H2O2.