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An efficient synthesis of p butyramidophenyl acetate from p aminophenol and n butyric acid by an improved method was reported. 以对氨基苯酚和正丁酸为原料,合成了4-丁酰氨基乙酰氧基苯,讨论了反应的影响因素。
The appIication of p - toIuene sulfonic acid as catalyst for synthesis of carboxyIic ester (ethyl bu-tyrate) is studied. 研究了对甲苯磺酸作为催化剂在羧酸酯（丁酸乙酯）合成中的应用。
Tow step process was involved in the preparation of the copolyester:acetylsis of p acetoxybenzoic acid and synthesis of copolyester(PET/PHB). 反应分两步进行:对羧基苯甲酸(PHB)乙酰化和PET/PHB共聚酯的制备。
An improved method for synthesis of p - diisopropoxy benzene at high pressure was developed with less consumption of 2 - bromopropane and less cost. 研究了一种对苯二异丙醚合成的改进方法,该法在加压下进行,减少了溴异丙烷的用量,降低了成本。
The synthesis of p phthalaldehyde from p xylene by chlorination and catalytic oxidation was studied. The total yield was over 89%, the purity of the product was over 99%. 以对二甲苯为原料，经氯化、催化氧化合成对苯二甲醛，收率大于89%25，质量分数在99%25以上。该工艺提高了产品的收率和纯度
The paper discusses the chlorination of side chain of p - chlorotluene and the hydrolytic process, and puts forword the process of synthesis of p - chlorobenzaldehyde. 研究了对氯甲苯侧链氯化、水解法合成对氯苯甲醛的工艺。
The reaction law of phenol with MTBE to synthesis of p -TBP and 2,4-DTBP carried out on the fixed flow reactor under atmospheric pressure with HY modification zeolite catalyst is systematically researched. 甲基叔丁基醚 (MTBE)作为烷基化剂 ,以改性HY分子筛为催化剂 ,在常压连续流动固定床反应器上 ,对苯酚烷基化合成对叔丁基和 2 ,4 -二叔丁基苯酚 (2 ,4 -DTBP)的反应规律进行了较为系统的研究。
The new research progress in synthesis of p aminophenol by chemical reduction,catalytic hydrogenation,electrochemical reduction and carbonic oxide reduction from nitrobenzene was reviewed. 研究硝基苯催化加氢制备对氨基苯酚的工艺条件,对影响因素进行了探讨。
Design Standard for Fire Protection of P. 邮电建筑防火设计标准。
The formation or synthesis of glycogen. 糖原生成糖原生成或合成
In DDTs the residual level of p,p? DDTs中p,p?
F&A has a role in every area of P&G's business. 财务部在P&G事业的每一个领域都存在。
An exuberant synthesis of animation and music. 动画与音乐的完美组合。
OBJECTIVE To improv synthesis of Linezolid. 摘要目的改进利奈唑胺的合成工艺。
We made a synthesis of their studies. 我们综合分析了他们的研究报告。
The de novo synthesis of PC increases in PE-SWD. 以同位素示踪法测得海水淹溺后肺组织初始原料合成(de novo)的TPL和DSPC增加。
Second, synthesis of 12(13)-seco-steroid sapogenin. 其次是C12(13)-断甾体皂甙元的合成。
His work is a synthesis of several idea. 他的作品是由几种构想综合而成的。
That's a good extended definition of P and I diagrams. 它是P&l图的一个很好的扩展定义。
It is involved in the synthesis of biotin. 它和生物素的合成有关。