| abstract |
PROCEDURE FOR PREPARING COMPOUNDS CONTAINING AMIDE GROUPS OF CARBOXYL ACID. BY REACTION OF COMPOUNDS CONTAINING A GROUP CARBOXYL, IN THE PRESENCE OF ANHYDRIDES OF DIALKYLPHOSPHINIC ACIDS CONTAINING A FREE AMINO GROUP. THE CONCENTRATION OF HYDROGEN IONS OF THE REACTION MIXTURE IS MAINTAINED WITHIN A DEFINED MARGIN, BY DOSAGEED CONTRIBUTION OF A BASE DURING THE REACTION AND, AFTER THE REACTION IS COMPLETED, RADICALS ARE SEPARATELY INTRODUCED FOR THE PROTECTIONS. |