PROCESS FOR THE PREPARATION OF BIARILS BY REACTIONS OF SUZUKI-MIYAURA INTO SUPERCRYTICAL CARBON DIOXIDE, CATALYSED BY PALADIUM (II) COMPLEXES WITH OXADIAZOLINS AND CETOIMINES

摘要

The invention relates to a process for the preparation of carbamates by SUZUKI-MIYAURA REACTIONS IN THE MEDIUM OF SUPERCRYTICAL CARBON DIOXIDE (SCCO2), CATALYSED BY PALADIUM (II) COMPLEXES WITH LIGANDS OXADIAZOLINE AND CETOIMINE BETWEEN ARYLENEAL HALOGENETHS AND ARYLBORONIC ACIDS. THESE CATALYSTS ARE VERY EFFECTIVE ALLOWING 100% YIELDS FOR MOLAR REASONS BETWEEN THE SUBSTRATE AND THE CATALYST OF AT LEAST 4.0 × 104 TON. YOU CAN GET THE MAXIMUM INCOME AFTER A TIME OF REACTION.