氨基
- 与 氨基 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 paper,3-methoxy-5,6-diamino-2-nitropyridine was synthesized from 3,5-dichloropyridine by substitution,oxidation,nitration and ammoniation .
研究了以3-氯-5-甲氧基-2,6-二硝基吡啶为原料,通过甲氧化、硝化、氨化合成3-甲氧基-5,6-二氨基-2-硝基吡啶,该化合物的结构通过IR,1H NMR,MS和元素分析进行了表征,确认为目标化合物。
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Dichloro-5-sulfamoylbenzoic acid(1)was synthesized by sulfochlorination , ammoniation and hydrolysis with 2,4-dichlorobenzoic acid as raw materials, and the reaction conditions were optimized.
2,4-二氯苯甲酸为原料,经氯磺化、氨解、水解酸化三步反应制备了2,4-二氯-5-磺酰氨基苯甲酸(1)。
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This paper introduces in detail the factors influencing the yield of the amino acetic acid with the chloroacetic acid ammonolysis process, and connecting with the production procedures, makes deep analysis, and puts forward some corresponding methods for increasing the yield.
详细介绍了氯乙酸氨解法氨基乙酸生产过程中影响收率的因素,并结合生产过程进行了深入分析,有针对性地提出了提高收率的办法。
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Amino-pelargonic acid was synthesized from sebacic acid through mono-esterification, ammonolysis and Hofmann's degradation.
9-氨基壬酸系从癸二酸经单酯化、氨化和Hofmann重排制得。
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A novel synthetic approach of 3,3'-azobis(6-amino-1,2,4,5-tetrazine) was firstly devised. Taking 3,6-bis(3,5-dimethylpyrazol-1-yl)-1,2,4,5-tetrazine as a primary material, DAAT was synthesized by high pressure ammonolysis and potassium permanganate oxidation. Compared with the four-step reaction in the literature, this new approach was reduced to two steps with a yield of 58.1%. The intermediate and DAAT were characterized by elemental analysis, IR and NMR spectra.
自行设计了3,3'-偶氮双(6-氨基-1,2,4,5-四嗪)新合成路线、采用3,5-双(3,5-二甲基吡唑-1-基)-1,2,4,5-四嗪为原料,由文献报道的4步反应缩减为2步,经高压氨解、高锰酸钾氧化合成了DAAT,总收率大幅提高,达到58.1%,并采用元素分析、红外光谱、核磁共振光谱等进行了结构表征。
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The obtained compound (2) was treated with borane-tetrahydrofuran (B2H6–THF) complex under nitrogen atmosphere in excessive THF for 18 h to give a kind of dark brown oil,followed by ammonolysis with NH3·H2O in autoclave at 100 ℃ for 6 h to produce 2-(5-amino-2- nitrophenyl) ethanol (3) in 84.4% yield.
用硼烷还原5-氟-2-硝基苯乙酸后,接着用氨水在高压釜中加热到100 ℃氨解,得到2-(5-氨基-2-硝基苯)乙醇(84.4%)。
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Dendritic p-t-butylcalix arene amide derivatives with terminal amino groups of the first and second generations were synthesized from the ammonolysis of ethyl calixylacetate with 1, 6-diaminohexane and Michael addition of methyl acrylate. Their structures were confirmed by IR, 1H NMR.
通过扩散法,采用氨基对丙烯酸甲酯的Michael加成反应和酯基的酰胺化反应交替进行,合成了4种树枝型对叔丁基杯芳烃酰胺衍生物(n=6,8)。
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One kind of composite with redox activity was prepared by ammonolysis of 3,4,9,10-perylenetetracarboxylic dianhydride,o-phenylenediamine and variable valence transition metal ions of Co~(2+).
利用苝四甲酸酐与1,3-丙二胺的胺解产物、邻苯二胺、变价过渡金属离子Co~(2+)制备了新型具有电化学活性的物质,该物质电子传输性能好,电极反应可逆,可以作为电化学活性探针使用,而且因其含有很多氨基,便于进一步结合纳米金。
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Dimethylhexane-1,6-dimethyleurethane is the key material for preparation of 1,6-hexamethylene diisocyanate by non-phosgene route. Our work mainly focuses on the study of the catalytic performances of metal oxysalts and metal oxides for the ammonolysis of DMC to HDU-M. Experiment effect showed the ammonolysis was omposed by two steps, in which the first step was easier to occur than the second.
中文摘要六亚甲基-1,6-二氨基甲酸甲酯是非光气合成六亚甲基二异氰酸酯的关键原料,本文主要对金属含氧酸盐和金属氧化物这两类用于碳酸二甲酯胺解合成HDU-M 的催化剂进行了初步研究并优化了工艺条件。
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Studies on the development of colon targeted oral drug delivery systems for ornidazole in the treatment of amoebiasis[J].
傅崇东,徐惠南,张瑜。5-氨基水杨酸结肠定位给药时控微丸的制备与体外释放[J]。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。