Draw the structure of the sigma-complex intermediate with an electron donating substituent at the meta-position to the incoming electrophile. Show the electrophile as "E" and the substituent as "R". Does the sigma-complex have a positive charge at the carbon bearing the electron donating substituent?
Draw the structure of the sigma-complex intermediate with an electron donating substituent at the para-position to the incoming electrophile. Show the electrophile as "E" and the substituent as "R". Does the sigma-complex have a positive charge at the carbon bearing the electron donating substituent?
Draw the structure of the sigma-complex intermediate with an electron donating substituent at the ortho-position to the incoming electrophile. Show the electrophile as "E" and the substituent as "R". Does the sigma-complex have a positive charge at the carbon bearing the electron donating substituent?
Any extra information on it would be super helpful as I'm struggling to understand these concepts!