An improved method for synthesis of 5 - nitroso - 2,4,6 - triaminopyrimidine by using dimethyl sulfox-ide and xylene as mixed solvents for azeotropic dewatering was developed. 研究了一种合成5-亚硝基-2,4,6-三氨基嘧啶的改进方法,该法采用二甲基亚砜和二甲苯作为混合溶剂共沸脱水,克服了单一极性溶剂脱水困难的缺点。
This paper introduced a improved process to synthesize pendimethalin by nitration,O-alkylation and condensation from3,4-xylenol.This process avoided the formation of the toxic nitroso compounds. 本文介绍了以3,4-二甲基苯酚为原料,经过硝化反应、氧烷化反应、缩合反应制备除草剂二甲戊灵的一种新的制备工艺,该工艺避免了有毒的亚硝基化合物的形成。
Keywords cobalt;Nitroso R salt;oscillopolarography; 钴离子;亚硝基红盐;极谱法;
Keywords Nitroso R salt Cobalt Spectrophotometer; 亚硝基红;钴;吸光光度法;
nitroso process (for sulfuric acid manufacture) [化] 亚硝基法(制硫酸)
The Photodissociation Dynamics of Some Nitro-and Nitroso Compounds 若干硝基、亚硝基化合物光解动力学研究
