芳基的
- 与 芳基的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this thesis, we want to describe the new one-carbon and three-carbon chain extension and ring expansion of 2-aroyl-3,4-dihydro-2H-naphalen-l-one, which is the first report based on our knowledge.
本文在前人的研究基础上,首次开展了α—芳酰基苯并环己酮增加一个碳原子和三个碳原子的自由基扩环和链增长反应,以及自由基加成成环反应。
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The results show that the urushiol dimer has the similarstructure with this compound.Therefore,we concluded that thestructure of alkyl phenyl ether is main structure formed in urushiolpolymerization.
合成并用2D—NMR方法研究了烷基芳醚化合物:2—丁基苯醚此化合物的NMR数据进一步确证了烷基芳醚型漆酚二聚体的存在。
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Making use of this reaction, thirteen methyl 2-arylamino-2-deoxy 3-keto glucopyranosides (5~17) with different substituted arylamino groups and two
选择不同类型的芳胺利用该反应合成了一系列共十三种2-脱氧2-芳胺基3-位氧化α-甲基D-葡萄糖苷(5~17),该类化合物为重要的手性合成子。
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In this paper,- and (5)-2,2'-diethynyl-1,1'-binaphthyl with highly stable chiral configurations were employed as structural templates, and a new type of helical cyclophane compounds-3 and-3 were synthesized in enantiopure form by the introduction of benzyl sulfone through Sonogashira coupling reaction, followed by the treatment of disulfone with lithium diisopropylamide.
基於2,2'-二取代的联萘衍生物在手性构型上高度稳定的特点,分别从光学活性的-和-2,2'-二乙炔基-1,1'-联萘结构模板出发,通过Sonogashira偶连反应导入苄基碸,然后用二异丙基氨基锂处理制得的联萘二碸成功地合成了一种新的螺旋环芳分子-对映异构体-3和-3。
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A series of sulfonated poly(arylene thioether/ether phosphine oxide)s was prepared by direct polycondensation of sBFPPO and BFPPO with the diphenol-type or dimercapto-type monomers such as hydroquinone, bisphenol-A, 4,4'-biphenol, 4,4'-diphenol (6F), 1,5-dihydroxynaphthalene, 4,4'-dihydroxybiphenyl, and 4,4'-thiobisbenzenethiol, respectively.
将BFPPO与sBFPPO分别与多种二羟基或二巯基单体,如对苯二酚、双酚A、4,4'-二苯酚、双酚F、1,5'-二羟基萘、4, 4'-二羟基二苯硫醚和4,4'-二巯基二苯硫醚,直接共聚制备了一系列磺化聚芳醚三苯基氧膦,侧重考察了二羟基和二巯基单体结构单元对产物的耐氧化性能的影响。
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The toxicity of selected compounds and their binary mixtures of sodium dodecyl sulfate with three substituted aromatic compounds to photobacterium phosphoreum was investigated, respectively.
研究阴离子表面活性剂十二烷基硫酸钠和苯酚、硝基苯、甲苯3种取代芳烃对发光菌的单一毒性,以及在等浓度配比条件下,SDS与这3种取代芳烃二元混合体系的联合毒性效应,并采用毒性单位、相加指数、相似性参数和泥合毒性指数进行毒性评价。
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The structure characters of this kind of molecules were discussed. The results show that the phenyl group located in the 4- or 5- position of pyrryl ring are not coplanar with the pyrryl ring.
对这类吡咯环上4或5-位有芳环取代基时化合物的晶体结构特征进行了扼要讨论,晶体衍射实验结果表明,4, 5-位上的芳环与吡咯环本身处于非共平面结构。
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Ten novel derivatives of 1-phenyl-5-[5-(substituted anilinocarbonylmethylthio)-4-phenyl-1,2,4- triazol-3-ylmethylthio]-tetrazole were synthesized rapidly in high yields by the reaction of N--2-chloryacetanilide (3) with 1-phenyl-5-(5-mercapto-4-phenyl-1,2,4-triazol-3-ylmethylthio)-tetrazo- le (2) under microwave irradiation and phase transfer catalysis conditions.
采用微波和相转移催化法通过1-苯基-5-(4-苯基-1,2,4-三唑-5-巯基-3-甲硫基)四唑(2)与2-氯乙酰芳胺(3)反应高效、快速地合成了10种尚未见文献报道的1-苯基-5-[5--4-苯基-1,2,4-三唑-3-甲硫基]四唑。其结构经IR,1HNMR,13CNMR和元素分析表征。生物活性实验结果表明,该类化合物在较低浓度下部分化合物对小麦芽有很好的促进作用
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In order to obtain versatile ulitity of host molecules, three new chiral calix [4] crown ethers containing aza, thio atoms bearing two chiral sites provided by -cysteine ester were synthesized by the condensation of calix [4] arene diacid dichloride with oligoethylene glycol bridged bis-amino acid methyl ester. All new compounds were characterized by NMR, MS and elemental analysis.
以-半胱氨酸为手性源,利用多甘醇二氯醚在碱性条件下对半胱氨酸巯基进行烷基化反应,成功地合成了多甘醇醚链桥联的半胱氨酸衍生物,醚化反应后,在高度稀释条件下与对叔丁基杯[4]芳烃二乙酰氯进行双功能基缩合反应成功地合成了新型的手性杯[4]含氮、硫杂冠醚,并利用〓H NMR、MS等谱图手段对其结构进行了表征。
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These substituents are either small groups such as phenoxy groups,aryls,cyclic secondary amines,cyano groups,and halogens or large functional moieties such as PDI,Phthalocyanines, porphyrins,BODIPY,cyclodextrin,Fullerene,calixarene,and so on.
这在过去的工作中,人们把一些小分子的,如酚氧基、仲胺基、苯基、氰基以及卤素氟、氯、引入到PDI中,同时也把一些较大功能团,如PDI本身、卟啉、酞菁、环糊精、BODIPY、杯芳烃、富勒烯等和PDI连接在一起。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。