Wolff Rearrangement

This step is from the synthesis of Pentacycloanammoxic Acid by Elias J. Corey. Show me the full synthesis.

Et₃N
hν

MeOH
RT, 3 h
72 %

This step is from the synthesis of Cyanocobalamin by Robert B. Woodward. Show me the full synthesis.

Ag₂O

MeOH
65 °C
69 % (3 steps)

This step is from the synthesis of Dodecahedrane by Horst Prinzbach. Show me the full synthesis.

NaHCO₃
hν

THF, H₂O
RT, 2 h
90 %