6574-99-8Relevant articles and documents
Method for catalyzing oxidation of amines to generate nitrile by using nonmetal mesoporous nitrogen-doped carbon material
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Paragraph 0019; 0034, (2021/05/08)
The invention discloses a method for preparing nitrile by catalyzing amine oxidation with a non-metal mesoporous nitrogen-doped carbon material catalyst, which is applied to the field of synthesis, the material is prepared by using a nitrogen-containing organic ligand as a precursor and silica sol as a template agent, calcining in the atmosphere of inert gases such as N2 or Ar and then removing the template agent; oxygen or air is used as an oxygen source, the reaction is performed at 80-130 DEG C under the action of ammonia water in the presence of a solvent, the effect is good, and the product still keeps higher activity after being recycled for more than 8 times, and has a wide industrial application prospect. The invention provides a heterogeneous non-metal catalytic system for catalyzing amine oxidation to prepare nitrile for the first time, and compared with a reported metal catalyst, the heterogeneous non-metal catalytic system does not bring metal pollution to a product to influence the effect of cyano drugs.
Hydrothermal synthesis of V-doped hexagonal WO3 microspheres comprising of nanoblocks for catalytic ammoxidation of dichlorotoluene
Li, Xiongjian,Huang, Chi
, (2020/12/17)
V-doped hexagonal WO3 microspheres comprising of nanoblocks were successfully prepared via a facile hydrothermal approach. Several techniques such as XRD, SEM, TEM, FTIR, EDS, TPR, BET and Raman have been performed and the characterization results reveal that V replaced W atoms into the hexagonal lattice-structure. The microspheres possess diameter of about 4.4 μm and the nanoblocks have thicknesses of 40–100 nm and widths of about 150 nm. In addition, the catalytic performance of the obtained V-doped WO3 nanomaterial was investigated in the ammoxidation of dichlorotoluene. The catalytic results indicate that the as-prepared nanostructures show significantly improved selective performance with the selectivities of 3,4-DCBN and 2,6-DCBN reaching up to 89.8% and 86.2%, respectively.
Cascade Process for Direct Transformation of Aldehydes (RCHO) to Nitriles (RCN) Using Inorganic Reagents NH2OH/Na2CO3/SO2F2 in DMSO
Fang, Wan-Yin,Qin, Hua-Li
, p. 5803 - 5812 (2019/05/14)
A simple, mild, and practical process for direct conversion of aldehydes to nitriles was developed feathering a wide substrate scope and great functional group tolerability (52 examples, over 90% yield in most cases) using inorganic reagents (NH2OH/Na2CO3/SO2F2) in DMSO. This method allows for transformations of readily available, inexpensive, and abundant aldehydes to highly valuable nitriles in a pot, atom, and step-economical manner without transition metals. This protocol will serve as a robust tool for the installation of cyano-moieties to complicated molecules.