Why can we undergo sulphonation with HBr + H2So4 on analine and we major product para
but when we do H2So4 + HNO3 on alaline, we get meta major product as we form NH3+ which acts as meta directing
why doesnt that happen on sulphonation?
It does happen on sulphonation, where initilaly the first reaction is acid base rxn between analine and acid
but in sulphonation, the end products are such that they release SO3 and end up remaking the analine
so now so3 reacts with analine to get para major product
Last changed18 hours ago