6) What are the structures of AclleOH and BocValOH (the two ligand precursors used here)? Draw the structure of one of these ligands bonded in the expected manner to Pd(II). 7) The authors note that isoleucine derivatives with Me or H attached at nitrogen shut down the reaction; why is an electron-withdrawing protecting group required? 8) What is the electron count of these complexes? Assume that "L" is an L-type ligand