查詢?cè)~典 pyridine
- 與 pyridine 相關(guān)的網(wǎng)絡(luò)例句 [注:此內(nèi)容來源于網(wǎng)絡(luò),僅供參考]
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Cinnamic acid was synthesized from benzaldehyde and malonic acid by Knoevenagel reaction with pyridine as catalyst.
以苯甲醛和丙二酸為原料,吡啶為催化劑国产黄色精品网站在线观看,利用 Knoevenagel 反應(yīng)合成肉桂酸,從而降低了反應(yīng)溫度,提高了收率和產(chǎn)物純度久爱www人成视频在线观看免费,簡化了合成工藝。
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The first part is to synthesize 5-formyl -8- quinolinol from 8-uinolinol and chloroform , using ethanol as a solvent. Then analysizing the 5-formyl-8-quinolinol by IR. The second part is , according to ideas of molecule designing, to synthesize the new self-assembly Inorganic-Organic coordination polymers Co(u2-bpyV2O6,(C4H4N2)Ni2(H2O)2-V4Ol2,(Cl2Hl2N2)Co-V2O6 using Cu, Ni, and Co as templating, 4-cyano-pyridine(4-CNPy), 4,4-bipyridine,pyrazine, l,2-bis(4-pyridyl)ethane, 5-formyl -8- quinolinol as building blocks and Ammonium Metavanadate (NH4VO3) as subordinate building blocks by Hydrothermal , analysizing their content of element determining their structures by X-Ray diffraction.
本課題實(shí)驗(yàn)分為兩部分:一是配體的合成宁夏暇葩货运代理有限公司,以8-羥基喹啉亚洲欧美熟妇久久久另类、三氯甲烷為原料,以乙醇為溶劑秋葵视频安卓手机下载,合成了5—甲醛基—8羥基喹啉并且對(duì)其進(jìn)行了IR的分析測定18禁尤物精品永久在线;二是配位聚合物的合成,通過分子設(shè)計(jì)亚洲国产成年女人久久,采用溶劑熱法以Cu一线毛片免费网站视频、Ni、Co為中心離子免费黄色av网站,以5—甲醛基—8羥基喹啉最新日韩精品第二页在线观看网站视频、4,4-聯(lián)吡啶美欧激情性交小说及视频、吡嗪日韩久久无码免费看A、1,2-二吡啶基乙烷為配體酒店露脸,以偏釩酸根(VO_3~-)為輔助配體亚洲成av人片不卡无码,通過水熱法自組裝合成了新的3-D網(wǎng)狀結(jié)構(gòu)配位聚合物Co(μ_2-bpy)V_2O_6,(C_4H_4N_2)Ni_2(H_2O)_2·V_4O_(12)五十路熟妇高熟无码BT,C_(12H_(12)N_2Co·V_2O_6又色又爽的视频,毛片,并對(duì)其進(jìn)行了元素分析和晶體結(jié)構(gòu)的測定。
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Macrocycle with one pyridyl unit and one aryl oxdiazole unitCondensation of Ts-amino acids with 2,6-bishydroxymethyl pyridinegave di-esters in the presence of DCC and TsOH in pyridine. DMAP,another acylation catalyst was also discussed in our esterification.
二免费毛片视频单身。含一個(gè)吡啶環(huán)和一個(gè)二苯基噁二唑單元:直接采用Ts保護(hù)的氨基酸與吡啶二醇在吡啶-TsOH反應(yīng)體系中少妇被又大又粗又猛烈的来回进出,在DCC作用下生成吡啶二醇二酯,討論了酯化過程中不同蹙镁肵X中文字幕免费视频;噭┑膽?yīng)用黄色一级AAAA片。
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The results showed that the block copolymer was composed of repeating units of oxyethylene and 2-vinyl pyridine, and linked with oxymethylene group.
某些條件下凝膠的生成影響反應(yīng)的順利進(jìn)行,討論了凝膠生成的影響因素色婷婷精品一区二区。
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In this research, two novel compounds in which alkylenedithiomethylene Malonic acid act as the main coordination agents and the compounds containing N atom (such as pyridine, Phenanthroline Ethanediamine and 4,4'-Bipyridinyl) act as the associating coordination agents have been synthesized by the means of solution and solid-liquid diffusing reactions. 9 coordination complexes and polymers have been designed and synthesized in which the transition metals Cu and Zn acted as the centre ions. These compounds have been characterized by X-ray single crystal diffraction analysis, and some properties of them have been tested and analyzed.
本論文設(shè)計(jì)合成了兩種結(jié)構(gòu)新穎的含有二硫縮烯酮結(jié)構(gòu)的丙二酸類化合物成人无码视频直入观看网站在线观看,以此為主要配體嗯啊在线网站,以含氮化合物(吡啶、鄰菲羅啉西欧黄片、乙二胺和4免费一级黄片无码精品,4'-聯(lián)吡啶)為輔助配體,采用常規(guī)溶液合成和固-液相擴(kuò)散等方法与老妇岳性疯狂刺激小说,設(shè)計(jì)合成了9個(gè)過渡金屬Cu和Zn離子配合物和配位聚合物狼友视频网站在线播放,采用單晶X-射線衍射等技術(shù)對(duì)晶體結(jié)構(gòu)表征,并對(duì)其部分性質(zhì)進(jìn)行了測試和分析特黄特硬特黄的黄片。
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A synthetic method for N-(5-nitro-6-chloro-3-pyridine methyl) phthalimide is studied.
研究了N-(5-硝基-6-氯-3-吡啶甲基)鄰苯二甲酰亞胺的合成方法欧美在线日韩在线。
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Then, N-(5-nitro-6-chloro-3-pyridinemethyl) phthalimide is obtained after the nitrating reaction of N-(6-chloro-3-pyridine methyl) phthalimide. The yield of the obtained product is 90.5%, and its melting point is 143.1~143.8℃.
縮合產(chǎn)物再經(jīng)過硝化,合成N-(5-硝基-6-氯-3-吡啶甲基)鄰苯二甲酰亞胺一级a做爱影院,其熔點(diǎn)為143.1~143.8℃久久伊人狼,收率為90.5%。
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Mainly engaged in sodium azide, barium azide, three phosphorus nitride Friday, phenyl isothiocyanate, 1 - phenyl -5 - mercapto-tetrazole, 4 - dimethylamino-pyridine, 2 - mercapto--5 -- methyl-1,3,4 thiadiazole, N-hydroxy phthalimide, anhydrous betaine and betaine hydrochloride, such as fine chemical raw materials and medicine, pesticide intermediates of the development, production and sales.
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In chatpter three the mechanism of the gold-catalyzed cycloisomerization of propargylic pyridine was reported.
論文第三章將報(bào)道金催化的炔丙基吡啶衍生物的環(huán)異構(gòu)化反應(yīng)的機(jī)理研究結(jié)果毛片一区网站。
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Pure phase FER zeolite and siliceous FER zeolite have been synthesized in the systems of tetramethyl ethylene diamine- Na2O- SiO2 - Al2O3 - H2O, Na2O - K2O - Al2O3 - SiO2 - H2O -HCO3-- CO32-, and pyridine - propylamine- HF- SiO2 - H2O respectively.
在TMEDA-Na2O-SiO2-Al2O3-H2O體系,Na2O-K2O-Al2O3-SiO2-H2O-HCO3--CO32-體系及Py-PrNH2-HF-SiO2-H2O體系中91在线视频国产福利试看,分別合成了純相FER沸石及FER硅沸石69网在线观看免费。
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And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.
47:5 法老對(duì)約瑟說,你父親和你弟兄們到你這里來了www.yw尤物。
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Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.
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Hey Big Raven, The individual lies dont matter anymore - its ALL a tissue of lies in support of...
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