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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Chapter two: Using 5-(4-aminophenyl)-10,15,20-triphenylporphyrin as thestarting compound, the classical diazotization of aniline and the resulting reaction ofdiazo salts were applied to porphyrin for the first time, and a series of asymmetriclysubstituted meso-tetraarylporphyrins including 5-(4-chlorophenyl)-10,15,20-triphenylporphyrin, 5-(4-iodinphenyl)-10,15,20-triphenylporphyrin, 5-(4-cyanophenyl)-10,15,20-triphenylporphyrin, 5-(4-bisphenyl)-10,15,20-triphenylporphyrin and 5-(4-hydroxylphenyl)-10,15,20-triphenylporphyrin were synthesized.
第二章:在已合成的5-(4-氨基苯基)-10,15,20-三苯基卟啉基础上,首次将芳胺的重氮化及重氮盐反应应用于卟啉,合成了5-(4-氯苯基)-10,15,20-三苯基卟啉、5-(4-碘基苯基)-10,15,20-三苯基卟啉、5-(4-氰基苯基)-10,15,20-三苯基卟啉、5-(4-联苯基)-10,15,20-三苯基卟啉和5-(4-羟基苯基)-10,15,20-三苯基卟啉等一系列不对称取代的meso-四芳基卟啉。
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In comparison with literature method, the microwave approach shows the salient features of rapid reaction rates and significant energy saving, clean reaction conditions, enhancement in chemical yield, and nonuse of perchloric acid(70%), which will result in cost saving and minimize safety concerns in the organic laboratory.
考察了微波辐射功率和辐射时间对目标产物收率的影响,2,4,6-三芳基吡喃盐与盐酸羟胺反应生成3,5-二芳基异噁唑衍生物的最佳微波辐射功率为600 W,辐射时间为8 min,最大收率为83%。
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This invention provides a polymerizer and polymerization equipment for producing an aromatic polycarbonate by melt transesterification from a molten prepolymer, of the aromatic polycarbonate, produced from an aromatic dihydroxy compound and a diaryl carbonate.
本发明提供了一种用于通过熔融酯交换由芳族聚碳酸酯的熔融预聚物生产芳族聚碳酸酯的聚合器和聚合设备,其中芳族聚碳酸酯的熔融预聚物由芳族二羟基化合物和碳酸二芳基酯生产。
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By means of molecular designing, a series of sodium branched-alkyl benzene sulfonates weresynthesized through seven process, involving Frieded-Crafts reaction, Grignard reaction, sulfonationand neutralization. Those isomers have similar structure, carbons of same quantity, but the position ofalkylaryl dissimilarity. Liner fat acid, metaxylene and halogenated hydrocarbon of different carbonnumber were used as the starting materials. Optimum processing condition was confirmed consideringinfluence of a series of reaction factors such as feed proportioning, quantity of catalysts, quantitysolvent, reaction time, temperature and pressure. Eight kinds of isomers of sodium hexadecylxylolsulfonates were finally synthesized, and characterized by FT-IR.
本文通过分子设计,以不同碳数直链脂肪酸、间二甲苯以及不同碳数的卤代烷为原料,经酰基化、格氏反应、加氢还原、磺化及中和等反应,合成了结构相似、烷烃链碳数一定、芳基在烷烃链不同位置的烷基芳基磺酸盐同分异构体;并考察了原料配比、催化剂用量、反应时间、反应温度、溶剂用量、反应压力等一系列因素对各反应的影响,进而确定最佳工艺条件,最终合成出十六烷基二甲苯磺酸钠的八种同分异构体,利用 FT-IR 对产物结构进行了分析。
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The present doctoral dissertation was carried out to study the chemical constituents isolated from stems of two medicinal schisandraceous plants.34 compounds were isolated from the ethanol extracts of the stems S.henryi collected in the Jiangxi province by various column chromatographies.27 of them were identified on the basis of spectral analysis.There are 18 lignans,(including 5 dibenzocyclooctadienes,6 aryltetralins,2 tetrahydrofurans,3 diarylbutanes,2 other lignans),3 flavanols,2 glyceroesters,1 naphthoquinone,1 xanthine and 2 steroids,of which 6 compounds were new compounds,and 7 compounds were isolated from this family for the first time.
采用多种色谱技术进行分离纯化,从翼梗五味子藤茎的乙醇提取物中分离到34个化合物,综合运用现代波谱学技术鉴定了27个化合物,包括木脂素类化合物18个(其中联苯环辛烯类木脂素5个,芳基四氢萘类木脂素6个,四氢呋喃类木脂素2个,二芳基丁烷类3个,其他类型木脂素2个),黄烷醇类化合物3个,甘油酯类化合物2个,萘醌类化合物1个,黄嘌呤类化合物1个,甾体类化合物2个,其中,5个为新化合物,7个为本科首次报道。
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Evaluation of some Mannich bases of conjugated styryl ketones and related compounds versus the WiDr colon cancer in vitro.
朱志宏,徐秀娟。2,4-二羟基-3-芳氨基甲基苯乙酮和8-乙酰基-3-芳基-3,4-二氢-5-羟基-2H-1,3-苯并噁嗪的合成及其相互转化。
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When diaryl ketones were treated in DMF promoted by samarium metal with TMSCl as activator, diaryl ketones react with DMF followed by a carbene rearrangement to afford benzoins unexpectedly, with benzils were obtained as byproducts, the formation of which may be explained as a result arising from the auto-oxidation of benzoins. Further investigation found the reaction could also proceed smoothly when I〓 was used as an activator. The reaction could occur as well in SmI〓/THF, though benzoins were obtained in relatively low yields.
发现当有活化剂TMSCl存在时,金属钐能有效的促进二芳酮和DMF的发生反应,偶联后发生卡宾重排,意外地得到苯偶姻类化合物,同时伴随着少量的二芳基二酮副产物生成,我们推测二芳基二酮的生成可能从苯偶姻的自氧化而来;进一步的研究表明,用一定量的I〓活化金属钐,该反应也可以顺利的进行,并且可以得到相对更好的实验结果。
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Synthesis and structural characterization of novel cycioplatinated complexes with 2-aryl imidazolines 2-arylimidazoline ligands 2a-2d were synthesized from benzoyl chloride or p-methoxybenzoyl chloride with aminoethanol or valinol and 2e was synthesized from 2-phenylimidazoline.
新型2-芳基咪唑啉环铂化合物的合成与结构表征以苯甲酰氯或4-甲氧基苯甲酰氯和氨基醇(2-氨基乙醇或外消旋的缬氨基醇)为原料,合成了四种2-芳基咪唑啉配体2a-2d,以2-苯基咪唑啉为原料合成了配体2e,其中2d为新化合物。
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Less preferred metal chelating groups are hydroxides amines which may be aliphatic aryl or heteroaryl; or mercaptans which may be aliphatic aryl or heteroaryl.
次选项金属螯合组的氢氧化物胺可能是脂肪族,芳基或杂;或硫醇可能是脂肪族,芳基或杂。
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Firstly, phenyliodine diacetate was immobilized to the 2% cross-linked polystyrene or the liner polystyrene resin. The more iodine the resin had, the lower conversion to phenyliodine diacetate. We made our endeavor to extend the range of useful application of polystyrene supported phenyliodine diacetate in organic synthesis:(1) the reagent was used as an effective reagent of carbonyl regeneration from oximes and semicarbazones of ketones.(2) the reagent was also applied to the synthesis of 1, 3, 4-oxadiazoles, 1, 3-disubstituted-2-pyrazoline, 2-arylbenzoxazole from aldehyde N-acylhydrazones, aldehyde hydoazones and phenolic Schiff's bases respectively.
首先,我们以2%交联的聚苯乙烯和线性的聚苯乙烯树脂为载体,制备了聚合物负载的二醋酸碘苯,通过研究发现:(1)聚苯乙烯二醋酸碘苯是酮肟、缩氨脲有效的去保护试剂,不仅芳香酮,脂肪酮和α,β不饱和酮的肟、缩氨脲也能顺利转化为相应的酮,实现酮基的再生;(2)我们还利用此试剂,分别与醛的N-酰基苯、N-酰基苯腙及邻羟基芳亚胺反应,在温和的条件下发生成环反应,以良好的产率生成1,3,4-噁二唑、吡唑啉和二取代苯并噁唑等杂环化合物;(3)聚苯乙烯二醋酸碘苯还可有效地将邻羟基芳酮的酰腙经氧化、重排成1,2-二酰基苯。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。