Amides, Thioamides, and Selenocarboxamides

Recent interest in the synthesis of oligopeptides has led to the development of many methods of amide preparation. The search for new coupling reagents and effective activation processes remains a major area of interest, and away from the peptide area syntheses of unsaturated and oxygenated amides are actively pursued. Benzo- 

Preparation of aziridine-2-carboxamides via aminolyses of mixed anhydrides formed from potassium salts of the corresponding acids 

Amides have also been made by addition of tertiary phosphines to 

Aminocarbonylations have also been applied to amide syntheses. 

Silylamines were employed in nickel tetracarbonyl-induced carbony- 

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