Page 46 - E-book Hidrokarbon

HIDROKARBON

1) Reaksi adisi alkena (propena)
Pt
C3H6(g) + H2(g) → C3H6(g)

H H
H H
C H Pt H H
C C + H H C C
H C
H H H H
H H
1-propena hidrogen propana

2) Reaksi adisi alkuna (2-butuna)
Pt
C4H6(g) + H2(g) → C4H10(g)

H H H H H H
Pt
H C C C C H + 2 H H H C C C C H
H H H H H H
2-butuna hidrogen butana
b. Reaksi halogenasi alkena dan alkuna menggunakan gas halogen (F, Cl, Br, I)

1) Reaksi adisi halogenasi alkena (2-butena)
C4H8(g) + Cl2(g) → C4H8Cl2(g)

H H H
HH Cl Cl
C
C C H H
H H + Cl Cl C
C C C C
H H
H H H H
H
2-butena klorin 2,3-diklorobutana

2) Reaksi halogenasi alkuna (etuna)
C2H2(g) + Br2(g) → C2H2Br2(g)

H C CH + Br Br H C CH

Br Br
etuna bromin 1,2-dibromoetena

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