Published as part of the Special Topic Recent Advances in Amide Bond Formation
Abstract
The atom-efficient formation of amide bonds has emerged as a top-priority research
field in organic synthesis, as amide bonds constitute the backbones of proteins and
represent an important structural motif in drug molecules. Currently, the increasing
demand for novel discoveries in this field has focused substantial attention on this
challenging subject. Herein, the degradable 1,3,5-triazo-2,4,6-triphosphorine (TAP)
motif is presented as a new condensation system for the dehydrative formation of amide
bonds between diverse combinations of aromatic carboxylic acids and amines. The underlying
reaction mechanism was investigated, and potential catalyst intermediates were characterized
using 31P NMR spectroscopy and ESI mass spectrometry.
Key words
amide bond formation - organophosphorus catalyst - dehydration - carboxylic acids
- amines