Production of refined solvent oil for synthesis of brufen

The Contribution of Brufen New Technology for Green Chemistry

布洛芬新工艺对绿色化学的贡献

AIM: To study the role of guanosine diphosphate ( GDP) on enzyme secretion and rising of [ Ca2+] I in saikosaponin ( I) [ SA ( I)] stimulated rat pancreatic acini.

目的：研究鸟苷二磷酸（GDP）对柴胡皂甙（Ⅰ）[SA（Ⅰ）]刺激大鼠胰腺腺泡酶分泌和胞内钙离子升高的影响。

A new method to synthesize N, N'-diphenyl thiourea ( DPTU) from aniline and CS 2 was developed in the presence of acidic resin as catalyst under reflux temperature for 6 h with the yield of 82.7% and the selectivity of 100%.

探讨了合成二苯硫脲的新方法。以酸性树脂作催化剂在回流温度下使苯胺与CS2反应6h，二苯硫脲的收率达827%，选择性为100%。

This mechanism can also reasonably explain the fact that only molecular ionic peak of phenyl iso-thiocyanate and naphthyl iso-thiocyanate was presented in the GC/ MS spectra of diphenylurea and diphenyl thiourea.

此机理同样能合理解释二苯脲和二萘硫脲的GC/MS谱图中只出现异氰酸苯酯和异硫氰酸萘酯分子离子峰的现象。

But the GC/ MS analysis showed that it is phenyl isocyanate. This may be due to neutral loss of aniline in the cleavage of diphenyl thiourea in GC/ MS analysis.

但用GC/MS分析该晶体为异硫氰酸苯酯，这可能是在GC/MS分析过程中二苯硫脲发生了中性丢失苯胺的缘故。

Under mild conditions, at room temperature and ambient atmosphere, diphenyl thiourea could be synthesized through the reaction of aniline and CS 2 over AlCl 3 catalyst with high yield and high selectivity.

常温常压下，用AlCl3作催化剂催化苯胺和CS2进行反应，可以高收率和高选择性地得到二苯硫脲。

However, identified by melting point, HPLC/ MS/ MS, FTIR, UV and 1H NMR analyses, the pure crystal should be diphenyl thiourea.

然而，用熔点测定、HPLC/MS/MS，FTIR，UV和1H NMR等手段对此晶体进行分析，确定其为二苯硫脲。

Neutral Loss of Aniline in GC/ MS Analysis of Diphenyl Thiourea

GC/MS解析中二苯硫脲的中性丢失

The development and achievement of discourses in the 9th National Veterinary Pharmacology& Toxicology Science Conference Toxicological Studies of Diphenyl Oxide

第九届全国兽医药理学及毒理学学术讨论会的论文进展

Measurement of Sodium and Potassium in 4,4'-Diamino? Diphenyl Oxide by Atomic Absorption Spectrophotometry

原子吸收法测定4,4′-二氨基二苯醚中钠和钾

Alkylation of Diphenyl Oxide Catalyzed by Ionic Liquid

离子液体催化合成烷基二苯醚

Kinetics of curing reaction of benzoxazine precursors based on diphenyl oxide resin

苯并恶嗪二苯醚树脂中间体开环固化反应动力学

Preparation of modified diphenyl oxide resin glass cloth laminated sheet

改性二苯醚树脂及其玻璃布层压板的研制

Study on cure behavior of benzoxazine based on diphenyl oxide resin

苯并恶嗪二苯醚树脂的固化行为研究

Most of thorium was removed from the title ore in the 6V/ V% HCl solution using cupferron choroform, and uranium and remainder thorium eliminated from 10 V/ V% HCl solution by diphenyl guanidine ( DPG) Arsenazo ⅲ n-butanol.

试验了在6%（V/V）HCl中用铜铁试剂氯仿除去大部分钍，在10%HCl（V/V）中用二苯胍偶氮胂Ⅲ正丁醇除尽钍铀；

The electrochemical behaviour and the current property of the entitled complex have been investigated in NH_3 · H_20-NH_4Cl buffer solution ( pH 9. 5) containing EDTA and diphenyl guanidine. The mechanism of related reactions has been discussed.

本文研究了铍（Ⅱ）-钍试剂Ⅱ在EDTA、二苯胍、氨-铵缓冲溶液（pH9.5）中的电极行为和电流性质，并对有关机理进行了探讨。

Diphenyl guanidine has been prepared by using of Fe2 O3 as catalyst and70% ethanol as solvent, and simultaneously the by-product H2S is used to prepare thiourea.

本文提出了在70%乙醇溶剂中以氧化铁作为触煤合成二苯胍，同时回收副产硫化氢合成硫脲的联合制备方法。

Studies on Extraction Spectrophotometry of Ternary Molybdenum(ⅵ) 4 ( 5 Bromo 2 Thiazolylazo) Pyrocatechol Diphenyl Guanidine Ion Associate

钼（Ⅵ）-4-（5-溴-2-噻唑偶氮）邻苯二酚-二苯胍三元离子缔合物的萃取分光光度研究

Development of Synthetic Technique for Diphenyl Guanidine

二苯胍合成技术进展

It can further reacts with diphenyl guanidine to form a stable, neutral, violet-red 1: 2:1 ternary ionic-associate complex.

它可与二苯胍进一步反应形成电中性的稳定紫红色1∶2∶1三元离子缔合络合物。