Synthesis of diaryl amines promoted by copper(Ⅱ) and 2,2′-biimidazole;
二价铜离子和2,2′-联咪唑促进下的二芳基胺类化合物的合成
The vibration value of aminoaryl amine/fatty amine diurea grease is low,which possesses excellent low-noise performances.
氨基芳胺/脂肪胺双脲脂的轴承振动值低,具有良好的低噪音性能。