problem 1: Suggest a plausible mechanism for the following reaction:
problem 2: Why are electrophilic additions involving H+ often mechanistically complex?
problem 3: Addition of H2 to Cp2Sc-Me generates Cp2Sc-H and CH4. What is the probable mechanism?
problem 4: The following reactions have been shown to proceed through different mechanisms:
Predict products A and B, including stereochemistry, and present a reasonable mechanism for each reaction.
problem 5: For the pairs of complexes given below, predict which one will be more reactive towards oxidative addition of H2.
a) RhCl(PPh3)3 or RhCl(CO)(PPh3)2
b) IrCl(CO)(PPh3)2 or [PtCl(CO)(PPh3)2]+