New research progress on 4254-15-3 in 2021. Chemistry is a science major with cience and engineering. The main research directions are chemical synthesis, new energy materials. category: chiral-oxygen-ligands, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 4254-15-3
ortho-Substituted arylboronic acids were investigated for subsequent use as binding sites.The introduction of different aminomethyl groupings resulted in a strong acceleration of the adjustment of the equilibrium of the esterification with diols as well as the transesterification of such esters.The rate of the transesterification was investigated with suitable systems by dynamic NMR spectroscopy.According to an estimation the enhancement compared with the unsubstituted compound amounted to 8 orders of magnitude.Most of the compounds showed a strong B-N-coordination as was shown by 11B NMR.There proved, however, to be no simple relation between B-N-coordination and the catalytic activity of the neighbouring groups.Neighbouring groups containing oxygen, sulfur, and fluorine showed no enhancement of esterification or transesterification and no coordination with the boron.
I am very proud of our efforts over the past few months and hope to 4254-15-3 help many people in the next few years.
Reference：
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate