A new method for the synthesis of primary amides from alkenyl
iodides in one carbonylation step using ammonium carbamate as ammonia
synthon is reported. The products were obtained in good yields under
mild reaction conditions using CO (1-6 bar). Steroidal
substrates with various moieties (e.g., 6-OH group, lactams, or
aromatic A-ring) could be converted selectively into the products.
primary amides - carbonylations - steroids - palladium - homogeneous catalysis