Химическая цепочка

1) CH3-CH2-CH-CH3 + Br2 (свет) = > X1

|

CH3

2) X1 + KOH = >X2

3) X2 + HBr = > X1

4) X1 + Na = > X3

5) X3 = > CO2

1) H3C-CH2-CH (CH3) - CH3 + Br2 (+hv) = H3C-CH2-C (Br) (CH3) - CH3 (X1) + HBr;

2) H3C-CH2-C (Br) (CH3) - CH3 + KOH (вод. р-р) = H3C-CH2-C (OH) (CH3) - CH3 (X2) + KBr;

3) H3C-CH2-C (OH) (CH3) - CH3 + HBr = H3C-CH2-C (Br) (CH3) - CH3 (X1) + H2O;

4) 2H3C-CH2-C (Br) (CH3) - CH3 + 2Na = H3C-CH2-C (CH3) 2-C (CH3) 2-CH2-CH3 (X3) + 2NaBr;

5) H3C-CH2-C (CH3) 2-C (CH3) 2-CH2-CH3 + 15.5O2 = 10CO2 + 11H2O.