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Synthesis process of 2,6-dichloro-3-methylaniline was investigated 3-methylaniline was first N-acetylated with acetic anhydride,then treated with chlorosulphonic acid and ammonia yielding the 2-methyl-4--benzenesulfonic amide,which wasin turn deacetylated,chlorinated and hydrolyzed to the title compound.Hydrochloric acid was used instead of sodium hydroxide in deacetylation and sodium chlorate instead of hydrogen peroxide as oxidant in chlorination.

合成工艺2,6-二氯-3-甲基苯胺调查3-甲基首次N-乙酰与醋酸酐,然后与氯磺酸和氨产量 2-甲基-4--苯磺酰胺基,而擅转乙酰,氯化和水解的标题compound.hydrochloric酸代替氢氧化钠乙酰氯酸钠代替双氧水为氧化剂,加氯。

Synthesis of dibutyrate nylon acids from nylon acids and butanol by the reaction of direct esterification and distillation under reduced pressure, using solid acid as catalyst.

尼龙酸在固体酸催化下,与丁醇直接酯化、减压蒸馏制得合格的尼龙酸二丁酯。

A new corrosion-scale inhibitor composed of citric acid/hydroxy ethylidene diphosphonic acid/polyitaconic acid-styrene sulfonic acid copolymer exhibited a good inhibition efficiency on corrosion and scale-forming, it can be used in circulating cooling water systems.

新型缓蚀阻垢剂柠檬酸/羟基乙叉二膦酸/聚衣康酸-苯乙烯磺酸有优良的抗腐蚀性能和阻垢性能,可用于循环冷却水系统。

The precursor of sodium titanate nanotubes is prepared by: reacting titanium dioxide, metatitanic acid or titanate ester in 20-80 wt.% NaOH aqueous solution at 100-140 deg.C for 12-72 h, washing with water, filtering and drying.

用于反应的前驱体纳米管钛酸钠由二氧化钛、偏钛酸或钛酸酯与20-80wt%NaOH水溶液在100-140℃反应12-72h后用水洗去NaOH,过滤、干燥制成。

The synthesis of dimethyl fumarate was studied from maleic anhydride and methanol with phospho molybdic acid as the catalyst and bromate as the isomerization catalyst by one-step in this short paper.

采用固体杂多酸磷钼酸为催化剂,溴酸盐为异构化剂,经顺酐一步合成了富马酸二甲酯,探讨了醇酐比、反应时间、催化剂的量、异构化剂的量以及异构化时间对合成DMF收率的影响,并确立了最佳反应条件。

Our study show that 9, 11-Octadecadienoic acid, methyl ester is the highest content of organic acid ester components in non-hydrocarbon fraction, higher content of 6-Octadecenoic acid, methyl ester reflects mainly terristrial source input, higher content of pentadecane acid, 14-methyl, methyl ester or Heptadeeanoic acid, 16-methyl, methyl ester shows mainly aquatic source input.

原油和岩石抽提物非烃中有机酸酯类化合物的有机地球化学研究报道很少,系统研究发现非烃有机酸酯中9,11-十八二烯酸甲酯含量最高,而次高峰的丰度可用作生源判识,陆源母质输入多的样品次高峰为6-十八单烯酸甲酯,水生母质供给多者次高峰为14-甲基十五烷酸甲酯或16-甲基十七烷酸甲酯。

The molecular designs and synthesis of triarylamine-based picolinic acid derivatives used as ancillary ligands, and their cyclometalated iridium complexes used as red-and green-emitters, as well as optoelectronics properites of these compounds were investigated in order to solve current problems of organic/polymeric electroluminescent materials and devices.

本论文针对目前有机/聚合物电致磷光材料和器件存在的问题,开展了新型三芳胺吡啶羧酸类辅助配体及其红光和绿光环金属铱配合物电致磷光材料的分子设计、合成和光电性能研究,主要包括:(1)设计、合成了三种新型的三芳胺吡啶羧酸类双齿阴离子型辅助配体;(2)以三芳胺吡啶羧酸衍生物作为双齿阴离子型辅助配体,合成得到了两个系列的红光和绿光环金属铱配合物;(3)研究了三芳胺吡啶羧酸类辅助配体分子结构对环金属配合物的紫外吸收和光致发光性能的影响;(4)以环金属配合物为客体,聚芴和恶二唑衍生物为主体,制作了聚合物电磷光器件,研究了含三芳胺吡啶羧酸类辅助配体、环金属配合物客体材料和聚合物主体材料等分子结构对电致发光性能的影响。

In this paper,pyromellitic dianhydride,1,2,3,4-cyclobutanetetracarboxylic dianhydride,4[(4-aminophenyl)-bis(4-methoxyphenyl)methyl]benzeneamine,4-hexyloxy-biphenyl-3′,5′-diaminobenzoate,and additive ADD-34 were used to synthesize four PIs.

文章用均苯四甲酸二酐,4[(4-氨基苯基)-二(4-甲氧基苯基)甲基]苯胺,1,2,3,4-环丁烷四羧酸二酐,4-己烷氧基联苯酚-3′,5′-二胺基苯甲酸酯和不同含量的添加剂制备了聚酰亚胺液晶取向剂。

Results After 24,48,72 and 96 hours of gunshot wound,the plasma level of ALT was significantly increased than that of the unwounded;AST(at 2nd,8th,24th and 48th hour),CK(at 2nd,8th and 24th hour),TG(at 24th,48th,72nd and 96th),BUN(at 2nd,8th and 24th) and DAO(at 8th,24th and 48th) were increased greatly.

1.2 检测指标所有致伤犬均于低温前、低温后即刻和伤后2,8,24,48,72和96小时抽血测丙氨酸转氨酶、天冬氨酸转氨酶、肌酸激酶、甘油三酯、尿素氮、肌酐、内毒素和二胺氧化酶含量,并同时观察生命体征的变化。

GB2760-86》issued by Public Health Ministry,phytic acid is suitable to bepreservative agent used tor aquatic products,e.g,prawn freezing preservative agent is 0.05%-0.1% phytic acid solution.In Japan,0.1-0.5% phytic acid is added to shellfish cans to prevent discolouring.Under 100℃F,adding 0.3%Phytic acid can preventfishbody discolouring in two minutes.

按卫生部颁发《食品添加剂卫生标准GB276J0——86增补品种》中规定植酸适用于水产品对虾保鲜参考用量以0.05%-0.1%的水溶液作为冷冻保鲜液,日本在贝类罐头中用0.1-0.5%植酸,以防黑变,鱼类用0.3%植酸,在100℃F处理,二分钟可防止鱼体变色。

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