本发明涉及一种二氟一氯乙烷的制备方法。
The invention relates to a preparation method of difluoromono-chloroethane;
二氟联苯是合成消炎镇痛药氟苯水杨酸的关键中间体。
Difluorobiphenyl is the key intermediate for the synthesis of antipyretic analgesic Diflunisal.
综述了二氟甲烷的气相催化合成工艺及其催化剂制备的最新进展；
Latest advances in the gaseous phase catalytic synthesis of difluoromethane and the preparation of catalysts are summarized.
提出了一种合成芳基氟喹诺酮抗菌剂二氟沙星和替马沙星的新方法。
A new synthetic method for preparing two arylfluoroquinolone antimicrobial agents, difloxacin and temafloxacin, was reported.
本发明公开了侧向二氟亚甲基醚桥键双末端烷基三联苯及其制备方法与应用。
The invention discloses side difluoro methylene ether bridged bond paired-end alkyl terphenyl, a preparation method and application thereof.
近临界水介质中2，6-二氟苯腈无催化水解制备2，6-二氟苯甲酰胺的方法。
Process of preparing 2,6-difluorobenzamide by 2.6-difluorobenz nitrile non catalyzing and hydrolyzing in near critical aqueous medium.
目的：评价二氟尼柳治疗类风湿性关节炎和退行性骨关节炎的临床疗效和安全性。
Objective: to evaluate the efficacy and safety of diflunisal in treatment of rheumatoid arthritis and degenerative osteoarthritis.
利用驯化污泥研究了邻氟苯胺、对氟苯胺、2，4-二氟苯胺的好氧生物降解性能。
The aerobic biodegradation of 2-fluoroaniline, 4-fluoroaniline, and 2,4-difluoroaniline by the acclimated activated sludge was studied.
对新型的液晶材料5-正丙基-2-（3，5-二氟苯基）嘧啶的合成路线进行了改进。
This paper presents an improved process for the preparation of the novel liquid crystal 5-propyl2-(3,5-difluorophenyl)pyrimidine.
抛射剂为三氯一氟甲烷、二氯二氟甲烷、二氯四氟乙烷、氮气和二氧化碳中的至少一种。
The propellent is at least one of trichlorofluoromethane, dichlorodifluoromethane, dichlorotetrafluoroethane, nitrogen and carbon dioxide.
一定的五氟乙烷与一氯二氟甲烷的组合物，作为加热或冷却的液体时具有非凡的效率和容量。
Certain compositions of pentafluoroethane and chlorodifluoromethane have unusual efficiency and capacity as fluids for heating and cooling.
目的研究二氟甲基鸟氨酸（DFMO）对K562细胞生长特性、凋亡及端粒酶活性的影响。
Objective: To investigate the effects of DFMO on the growth characteristics, apoptosis and activity of telomerase of K562 cells.
以2 ，6 二氯苯腈为原料，经氟化和水解制得2 ，6 二氟苯甲酰胺，产率为92 % ；
Difluorobenzamide was synthesized by fluorination and hydrolysis from 2,6 dichlobenil with the recovery of 92%.
本发明能够由廉价且容易获得的材料简便高效且以高纯度得到以往为高价且难以获得的二氟磷酸盐。
A difluorophosphate salt, which is expensive and not readily available, can be produced with a high purity readily and efficiently from inexpensive and readily available materials.
间接氟化法则主要介绍了一些新的含- CF_2 -的合成砌块在合成二氟亚甲基化合物中的应用。
As indirect method, the use of new CF2 - containing building blocks in the synthesis of CF2 - containing compounds has been summarized.
公认的可工业化的生产方法是以2，4-二氟苯胺为原料，经偶联、酰化、水解、羧化等一系列反应制备。
The accepted commercial process is based on 2,4-difuloroaniline, through coupling, acylation, hydrolysis and carboxylation reactions.
Meyskens说，DFMO，α-二氟甲基鸟氨酸，是作为癌症治疗开发的，但现在用来治疗非洲昏睡病。
Meyskens says that DFMO, which is short for difluoromethylornithine, was developed as a cancer medication, but is now used to treat African sleeping sickness.
本发明涉及一种有机化合物的制备，特别是一种3，5-二氟苯甲醚的制备方法，属于有机化合物的制备技术领域。
The invention relates to preparation of an organic compound, particularly to a method for preparing 3, 5-difluoro anisole, which belongs to the field of organic compound preparation technology.
本文以国内易得原料为主，设计研究了盐酸二氟沙星和甲磺酸达氟沙星的合成新工艺，并对合成的产物的性质和结构进行了表征。
This paper is focused around a systematic research on new synthetic process of Difluoxacin Hydrochloride & Danofloxacin Mesylate, and confirm the product through structure and property analysis.
说出来吓死你，死尸会释放出苯，二氯二氟代甲烷等一系列奇怪的化学物质。然而也正是这些物质帮助了科学家找到各种隐秘的墓穴。
Dead bodies emit a surprising array of chemicals, from benzene to freon, which can help forensic scientists find clandestine graves.
同样的，如果我们观察二价的氟，它是每摩尔160焦。
Likewise, if we look at fluorine in its diatomic molecule, it is 160 kilojoules per mole.
2,3-二氯-5-三氟甲基吡啶是杀虫剂氯氟脲类合成农药的关键中间体。
2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron.
在最坏的情况下，每磅进入到大气中的地氟醚相当于1620磅二氧化碳做起的作用。
In the worst case, each pound of desflurane that enters the atmosphere is the equivalent of 1620 pounds of carbon dioxide.
环境保护署称，它的发现是基于对六种温室气体的极其严格科学评判而做出的，这六种气体包括：二氧化碳，甲烷，一氧化二氮，氢氟碳化物，全氟碳化物以及六氟化硫。
The EPA said its finding was based on a rigorous review of science on six greenhouse gases: carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride.
这些氢氟碳化合物的升温效应至少是二氧化碳的1000倍。
The warming effect of these HFCs is at least 1,000 times that of carbon dioxide.
在最坏的情况下，进入大气的每磅地氟醚都相当于1620磅的二氧化碳。
In the worst case each pound of desflurane that enters the atmosphere is the equivalent of 1,620 pounds of carbon dioxide.
在最坏的情况下，进入大气的每磅地氟醚都相当于1620磅的二氧化碳。
In the worst case each pound of desflurane that enters the atmosphere is the equivalent of 1, 620 pounds of carbon dioxide.
在最坏的情况下，进入大气的每磅地氟醚都相当于1620磅的二氧化碳。
In the worst case each pound of desflurane that enters the atmosphere is the equivalent of 1, 620 pounds of carbon dioxide.
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