  We study the scaling regime of pion electroproduction in the backward region,
eN->e'N'pi. We compute the leading-twist amplitude in the kinematical region,
where it factorises into a short-distance matrix element and long-distance
dominated nucleon Distribution Amplitudes and nucleon to pion Transition
Distribution Amplitudes. Using the chiral limit of the latter, we obtain a
first estimate of the cross section, which may be experimentally studied at
JLab or Hermes.
