Question

Помогите составить цепочку превращений!
1.a + NaNH2 = b + NH3
2.b + CH3Br = c + NaBr
3.c + H2 = d
4. d + O3 + H2O = C2H40 + H2O2

Answer 1

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.