7589768
Descripción
Fichas por Fauzia Ali, actualizado hace más de 1 año
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Creado por Fauzia Ali
hace más de 9 años
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| Pregunta | Respuesta |
| Why is benzene less reactive than alkenes? | |
| In cyclohexene the pi bond is made by sideways overlap of p orbitals on adjacent carbon atoms. Whereas for benzene, the pi bond is made by the sideways overlap of p orbitals on all 6 carbons atoms adjacent to each other | Therefore on benzene the 6 pi electrons are delocalised over 6 carbon atoms On cyclohexane the two pi electrons are localised between the two carbon atoms |
| Therefore cyclohexene has a higher pi electron density than benzene and will attract electrophiles more strongly as it induces a bigger dipole | So alkenes are more reactive than benzene |
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