Ammoxidation of 2-methyl pyrazine to 2-cyano pyrazine on MoO3/FePO4 catalysts /NAGARAJU PASUPULETY a, ∗ , HAFEDH DRISS b , YAHIA ABOBAKOR ALHAMED a,b , ABDULRAHIM AHMED ALZAHRANI a,b , MUHAMMAD A DAOUS a,b , LACHEZAR PETROV a , N LINGAIAH c and P S SAI PRASAD c - PASUPULETY,NAGARAJU