carboxylate–phosphate anhydride pathway is described for the direct, economical synthesis of esters and amides from carboxylic acids and alcohols or amines. The reaction proceeds with retention of configuration with both chiral secondary alcohols and α-aminoacid derivatives allowing access to useful chiral auxiliaries, ligands, and organocatalysts. Ester and amide products can be isolated directly in high yield due
Carboxylic Phosphoric Anhydrides as a New Coupling Partner in Pd-Catalyzed Coupling Reactions: A New Ketone Synthesis
作者:Sunggak Kim、Kyoung-Chan Lim、Young-Taek Hong
DOI:10.1055/s-2006-947345
日期:2006.8
The Pd-catalyzed cross-coupling reactions of carboxylic phosphoric anhydrides with organoboronic acids or organostannanes afforded the corresponding ketones. The intramolecular Heck reaction was successful with carboxylic phosphoric anhydrides as a coupling partner.