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Sulfonation of Benzene

If SO3 is a non-polar molecule why, then, does it act as an electrophile?
Reply 1
Avatar for duharvalgt
duharvalgt
7
S-O bond is very weak (break from 1of 3 double bonds) then is so3+ therefore is an electrophile.
Original post by ilovemath
If SO3 is a non-polar molecule why, then, does it act as an electrophile?


Overall it is non-polar because all of the individual dipoles cancel out. BUT the sulphur is relatively positive compared to the three oxygen atoms.
A non-polar molecule can still have polar bonds :yes:
Reply 4
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ilovemath
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2
Original post by EierVonSatan
A non-polar molecule can still have polar bonds :yes:


is it because the sulfur as an atom is strongly (+vely) polarised so can attack the benzene ring?
Original post by ilovemath
is it because the sulfur as an atom is strongly (+vely) polarised so can attack the benzene ring?


Yes, as charco said above :yes:
Reply 6
Avatar for ilovemath
ilovemath
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Original post by EierVonSatan
Yes, as charco said above :yes:


yes...sorry...didn't see that post

thanks all :smile:

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