The rate constants for the bromination of several disubstituted stilbenes are given in the table below. Given that the double bond of stilbene acts as the nucleophile, provide a reasonable explanation for the trend observed among the rate constants. X -OMe -OMe -OMe -OMe NON Y -OMe -Me -CI -NO₂ Br2 Br Br k(x103 1/mol-min) 220 114 45 5.2

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The rate constants for the bromination of several disubstituted stilbenes are given in the table below. Given that
the double bond of stilbene acts as the nucleophile, provide a reasonable explanation for the trend observed
among the rate constants.
X
-OMe
-OMe
-OMe
-OMe
oooo
Br2
121
Y
-OMe
Me
-Cl
-NO₂
Br
Br
k(x103 1/mol-min)
220
114
45
5.2
Transcribed Image Text:The rate constants for the bromination of several disubstituted stilbenes are given in the table below. Given that the double bond of stilbene acts as the nucleophile, provide a reasonable explanation for the trend observed among the rate constants. X -OMe -OMe -OMe -OMe oooo Br2 121 Y -OMe Me -Cl -NO₂ Br Br k(x103 1/mol-min) 220 114 45 5.2
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