H2(I)C - CH (CH3) - CH3 + 2Na + H3C - CH (CH3) - CH2(I) --> 2NaI +
H3C - CH (CH3) - CH2 - CH2 - CH (CH3) - CH3
H2(I)C - CH (CH3) - CH3 + 2Na + H3C - CH (CH3) - CH2(I) --> 2NaI +
H3C - CH (CH3) - CH2 - CH2 - CH (CH3) - CH3