Question #78949

1 Answer
Ernest Z.
Apr 28, 2017

At room temperature you get an addition reaction, while at high temperature you get a substitution reaction.

Explanation:

At room temperature

You get an electrophilic addition reaction.

"H"_2"C=CHCH"_3 + "Cl"_2 stackrelcolor(blue)("room temperature"color(white)(mm))(→) "ClCH"_2"-CHClCH"_3H2C=CHCH3+Cl2room temperaturemm−−−−−−−−−−−−→ClCH2-CHClCH3

At high temperature

You get a free radical substitution reaction.

"H"_2"C=CHCH"_3 + "Cl"_2 stackrelcolor(blue)("high temperature"color(white)(mm))(→) "H"_2"C=CHCH"_2"Cl" + "HCl"H2C=CHCH3+Cl2high temperaturemm−−−−−−−−−−−−→H2C=CHCH2Cl+HCl

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