This paper reviews the research and development of phosgene Derivates,including diphenyl ketone,chlorocarbonate,isocya-nate,acyl chloride and carbonates.

本文综述了光气下游精细的开发及生产进展,包括二苯酮类、氯代酯类、氰酸酯类、酰氯类、碳酸酯类合物。

As the isocyan group is polymerized further, diphenyl carbondiimine may be formed, further polymerization of which forms a nitrogen-containing polycyclic aromatic compound.

氰合物进一步二聚成二苯碳二亚胺，后者又聚合生成含氮杂环的多环烃。

The oxidative dimerization of aryl methanes in organic solvents by using alkaline catalysts is an important way to prepare diphenyl ethanes and diphenyl ethylenes.

烷在有机溶剂介质中、碱催下的氧缩合反应,是合成二苯乙烯(烷)类合物的重要途径.

Methods Using the assay system of peroxide value (POV), diphenyl picryl-hydrazyl (DPPH), the antioxidative activities of various extracts were studied and comparedwith VE and VC.

方法以过氧值(POV)法和DPPH法对提取物进行抗氧活性的测定,以维生素E(VE)和维生素C(VC)作抗氧性能对照。