1680 (H2SO4) () (C2H5OH).
CH3-CH2-OH+H2SO4→CH2=CH2+H2O
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:
CH3-CH2-Br + KOH → CH2 = CH2 + KBr + H2O;
l-CH2-CH2-Cl + Zn → ZnCl2 + CH2 = CH2;
(t >150˚ C)
CH3-CH2-OH → CH2 = CH2 + H2O;
(500) (Ni, Pt, Pd)
CH3-CH3 → CH2 = CH2 + H2↑.
, , , , , , .
1. ( ) , , , :
CH2 = CH2 + Br2 = Br-CH2-CH2Br.
(300), :
CH2 = CH2 + Cl2 → CH2 = CH-Cl + HCl.
2. (HCl, HBr) :
CH2 = CH2 + HCl → CH3-CH2-Cl.
3. (, ) :
CH2 = CH2 + H2 → CH3-CH2-.
(1), - (2, 3) ( ) (4):
CH2 = CH2 + HClO → CH2(OH)-CH2-Cl (1);
CH2 = CH2 + (CH3COO)2Hg + H2O → CH2(OH)-CH2-Hg-OCOCH3 + CH3COOH (2);
CH2 = CH2 + (CH3COO)2Hg + R-OH → R-CH2(OCH3)-CH2-Hg-OCOCH3 + CH3COOH (3);
CH2 = CH2 + BH3 → CH3-CH2-BH2 (4).
, . , , . ,
2ON-CH = CH2 + HCN →2ON-CH2-CH2-CN.
4. . . , . .
3CH2 = CH2 + 2KMnO4 +4H2O = 3CH2(OH)-CH2(OH) +2MnO2 + 2KOH.
(σ-) :
200 CuCl2 PdCl2 :
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CH2 = CH2 +1/2O2 = CH3-CH = O.
5. . , . ( ) . (Ni, Pd, Pt), :
CH2 = CH2 + H2 = CH3-CH3.
6. . - . ( ) ( ):
n CH2 = CH2 = -(-CH2-CH2-)n-.
7. :
C2H4 + 3O2 → 2CO2 + 2H2O
8. . (, , ) (), / .
2CH2=CH2→CH2=CH-CH2-CH3
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