aromatic nitriles can be prepared in this manner with moderate to excellent yields. The reaction mechanisms were obtained with high-level quantum chemical calculations, and the crucial role the anionic ligand plays in the transformations were revealed.
Transfer Hydration of Dinitriles to Dicarboxamides
作者:Asuka Naraoka、Hiroshi Naka
DOI:10.1055/s-0039-1690026
日期:2019.10
robust method for double transfer hydration of dinitriles to afford diamides. The transfer hydration of 1,n-dinitriles (n = 1–6) proceeds smoothly in the presence of a palladium(II) catalyst with acetamide as a water donor, affording the corresponding diamides in moderate to high yields, without involving significant side reactions such as monohydration or cyclization. The equilibrium was shifted in
The invention relates to compounds of the formula (1) in which R1 and R2 respectively are a sterically hindered cyclic amine and their use as additive for increasing the notched impact resistance of polyetherketones.
2,5‐Furandicarboxamide was firstly synthesized in yield of 85% via catalytic oxidative amidation of 5‐hydroxymethylfurfural with aqueous NH3 over alkali manganeseoxides of α‐MnO2/NaxMnO2. The intermediates of 5‐hydroxymethyl‐furonitrile, 2,5‐dicyanofuran, and 5‐cyano‐2‐furancarboxamide were verified and their reactivities were further examined. The kinetic analysis results showed that the transformation