申请人:UNION CARBIDE CHEMICALS AND PLASTICS COMPANY, INC.
公开号:EP0394967A1
公开(公告)日:1990-10-31
Carbonylnitriles and iminonitriles are subjected to reductive amination in two steps, the first of which is at a temperature sufficient to produce the aminonitrile and the second of which is at a higher temperature and/or uses hydrogenation catalyst more reactive toward nitrile groups sufficient to produce the hydrogenated compound. The processes may be conducted under lower pressures, e.g., under about 700 psig, while maintaining desirable selectivity to the aminated product.
羰基腈和亚氨基腈分两步进行还原胺化,第一步的温度足以生产氨基腈,第二步的温度更高,和/或使用对腈基反应更强的氢化催化剂,足以生产氢化化合物。这些过程可以在较低的压力下进行,例如在约 700 psig 的压力下,同时保持对胺化产物的理想选择性。