On pointed Hopf algebras associated to some conjugacy classes in S_n
  We show that any pointed Hopf algebra with infinitesimal braiding associated to the conjugacy class of pi in S_n is infinite-dimensional, if either the order of pi is odd, or pi is a product of disjoint cycles of odd order except for exactly two transpositions. 
Nicol'as Andruskiewitsch and Shouchuan Zhang