How many of the following compounds are more reactive than benzene towards electrophilic substation?

To determine how many compounds are more reactive than benzene towards electrophilic substitution, we need to consider the structural features of each compound as well as the electronic effects that influence their reactivity.

Understanding Reactivity in Electrophilic Substitution

1. Benzene Reactivity: Benzene is an aromatic compound with a stable ring structure, which makes it less reactive compared to non-aromatic systems. Its reactivity is primarily influenced by the presence of substituents on the ring.

2. Electron-Donating vs. Electron-Withdrawing Groups: Compounds that have electron-donating groups (like -OH, -NH2) are generally more reactive towards electrophilic substitution compared to benzene, as these groups increase the electron density of the ring, making it more nucleophilic. Conversely, electron-withdrawing groups (like -NO2, -CF3) decrease reactivity.

3. Identifying Compounds: To answer your question, you will need to compare each compound you have with benzene, identifying their substituents and their effects on the aromatic system. This will require knowing if the substituents are electron-donating or electron-withdrawing.

Analyzing the Compounds

1. Go through each compound and note the presence of functional groups.
2. Classify each group as either electron-donating or electron-withdrawing.
3. Determine if the overall electronic effects make these compounds more or less reactive than benzene.

Conclusion

After analyzing all the compounds based on the information provided above, you should be able to determine how many of them are more reactive than benzene towards electrophilic substitution. If you provide the list of compounds, I can offer a more detailed analysis.