查询词典 chloro-carbonate

Part 1 : 4-(Biphenylyl-4-oxy)aniline was synthesized by the nucleophilic chloro-displacement of 4-chloronitrobenzene with the potassium phenolate of 4-phenylphenol, followed by palladium-catalyzed hydrazine reduction.

摘要 第ㄧ部份： 4-Chloronitrobenzene 与 4-phenylphenol进行芳香亲核置换反应，再用钯催化联胺还原法合成出 4-(Biphenylyl-4-oxy)aniline。

Picoline was treated with hydrogen peroxide to form intermediate N-oxide-3- methylpyridine then chloridized with benzoyl chloride to form 2-chloro-5-methylpyridine.

以3-甲基吡啶为原料通过过氧化氢氧化得中间产物3-甲基吡啶-N-氧化物，再用苯甲酰氯氯化得到粗产品2-氯-5-甲基吡啶。

Methods Using 4-chloro-2-nitroaniline as a starting compound, followed by substitution, reductive cyclization, oxidation, and chlorination, to give the key intermediate 2,7-dichloroquinoxaline (7), which reacted with different phenolic compounds to afford quinoxaline derivatives.

方法以4氯2硝基苯胺为起始原料经取代、还原关环、氧化、和氯代合成了中间体2，7二氯喹喔啉(7)，再在喹喔啉的2位引入不同的取代酚结构单元，合成了一系列共9个新喹喔啉衍生物。

The results indicated that IEG,as a transcription regular factor,could participate in the process of neurotoxicity induced by chloro methylmercury.

提示第三信使IEG作为转录调控因子参与了氯化甲基汞对中枢神经损害的毒性过程。

The group company carries forward the corporate spirit of "devoted to your job, self-forgetful for your dedication, dare to explore, and fight for the first grade" long years and the business tenet of "Doing a project, building good reputation and developing a market" to get to further exploration and continuous progress. It has successively undertaken the widespread big and highly difficult engineering projects, such as the foundation project of Nanjing Tairun real estate development Co.,Ltd., the installation project of Beijing Wangfujin Mansion with an area of 100,000 m2,the construction project of Liyang Jinhui Plaza(the 1st 5-star hotel in Liyang), the installation project of Beijing Oriental Plaza, the steel frame installation project of Xiaoshan International Airport, Wuxi North-City Sewage Water Treatment Factory project, the machinery and electrical equipment installation project of Beijing Century Fortune Center, the LDPE factory construction project of Germany BASF company, the first section project of Baotou Tianci Rare Earth Co.,Ltd., the lifting and installing project of 600T 189.9M shipbuilding gantry crane of Dalian Xinchuan Heavy Industry Co.,Ltd., the elevator installation project of China Sci-tech Auditorium, the 220T/H boiler dismantlement and installation project of Anhui Chloro-Alkali Chemical Group Co.,Ltd., the boiler installation project of Wujin Steel Company and the pipeline installation project for leading Yellow River to Shanxi Province , the machinery and electrical equipment installation project of Wuxi P.E. Center Swimming Stadium. The company won tens of national, provincial and municipal-level good quality projects, and meanwhile got better economic and social benefits.

多年来，集团公司以"忠于职守，无私奉献，勇于开拓，争创一流"的企业精神，以"承一项工程，树一片信誉，辟一方市场"的经营宗旨，积极开拓，不断进取，先后承接了南京泰润房地产开发有限公司桩基工程，10万平方米北京王府井大厦机电安装工程，溧阳市锦汇商业广场建设工程，北京东方广场安装工程，浙江萧山国际机场钢结构安装工程，无锡城北污水处理厂工程，13万平方米北京世纪财富中心机电设备安装工程，德国投资巴斯夫LDPE建厂工程，浙江嘉兴嘉爱斯热电有限公司热网工程，包头天赐稀土东阿工业园区一期工程，南京黑色金属公司综合楼工程，大连新船重工有限责任公司600吨 189.9米造船龙门式起重机工程，中国科技会堂电梯安装工程，安徽氯碱化工集团220T/H锅炉汽机拆装工程，武钢中天240T/H锅炉安装工程，无锡市体育中心游泳馆机电安装工程，山西引黄管道安装工程等一大批远近闻名的重大工程和高难度工程，获得了几十项国家级、省市级优质工程奖和省市级文明工地称号，取得了较好的经济效益和社会效益。

Synthesis of kojic distearate from stearate acid, chloro-sulfoxide and kojic acid was studied.

介绍了以硬脂酸，氯化亚砜，曲酸等为原料制备双硬脂酸曲酸酯的方法。

In this paper, the effects of different catalyst combinations on the synthesis of α-chloro-dodecanoic acid were investigated, in which a series of acyl chlorides such as 4-toluene sulfonyl chloride, dodecanoyl chloride, chlorosulphonic acid , etc.

本文从烯酮式反应机理出发，以α-氯代十二酸的合成为模型，对酰氯化试剂(对甲苯磺酰氯、十二酰氯、氯磺酸等)和质子酸催化剂(如H型离子交换树脂、氯磺酸、对甲苯磺酸、醋酸等)进行组合和选择，并与文献报道的特殊添加剂乙酐比较，研究不同催化体系在酸催化合成α-氯代脂肪酸时的催化作用。

In the process of laboratory study, oxycodone was prepared by oxidating thebaine at 6,14-position under oxydol, hydrodeoxidizing 7,8-position double bond and 14-position ether under palladium catalyst. Furthermore, N-methyl of oxycodone was isolated byα-chloro-ethyl chloroformate under anhydrous condition and protection of 14-position hydroxyl to obtain noroxycodone, which was further converted into methylnaltrexone by N-alkylation in presence of cyclopropyl bromomethane, then by isolating 3-position methyl of methylnaltrexone under boron tribromide, becoming hydrochloride to prepare target compound, natrexone hydrochloride.

实验室工艺方面，本文首先用双氧水氧化蒂巴因的6-位和14-位、在钯炭催化下加氢还原7-8位双键和14-位醚合成羟考酮，然后提出并优化了在无水和14-位保护的情况下，用氯甲酸-α-氯乙酯脱去羟考酮的N-位甲基合成去甲羟考酮，再用环丙甲基溴将去甲羟考酮的N-位烷基化合成甲基纳曲酮，最后采用三溴化硼脱去甲基纳曲酮的3-位甲基和成盐酸盐合成盐酸纳曲酮。

Uranium in the ore is separated and converted into U in HCl andcomplexed with TPC and a new type thoron reagent,2(phosphino-chloro-benzenediazo)-7 (disulfo-naphthyl-diazo)-naphthalene-1, 8 diol-3, 6 disulfonic acid.

铀在 0.5—1.4 mol/l盐酸中，用氯化十四烷基吡啶作增溶剂，铀与偶氮氯膦6，8-萘二磺酸-TPC形成的三元络合物具有极高的灵敏度ε_(705nm=1.6×10~5l·mol~(-1)·cm~(-1)和较好的选择性。

The second method dealt with the acylation of(2S)-1-amino-3-chloro-propanol Salts in the presence of triethylamine.

通过正交实验对该方法噁唑烷酮环形成反应的条件进行了优化。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。