苯并
- 与 苯并 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The result indicates that the benzene ring and naphthalin ring in the eriochrome black T molecule is degraded to organic acid and benzoquinone, and further becomes inorganic substances by chlorine dioxide direct oxidation and catalytic oxidation, which is good for the further treatment of the refractory bio-degradation wastewater.
结果表明,铬黑T经化学氧化和催化氧化后,分子中苯环和萘环被氧化分解为羧酸和苯醌,并进一步分解为无机物,为难降解废水的后续处理创造了条件。
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In the fifth chapter, a series of betulin derivatives including 28-acetoxybetulin, 28-tritylbetulin, 28-benzoylbetulin, 3-0-P-D-glucopyranoside of betulin and some betulinic acid conjugate containing amino acid were synthesized and confirmed by MS and NMR.
第五章分别合成得到了乙酰化白桦酯醇、28-苯甲酰化白桦酯醇、28-三苯甲基化白桦酯醇、3-O-β-D-glucopyranoside of betulin和一系列的白桦酯酸苷氨酸的衍生物,并分别对其进行了结构鉴定。
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In the fifth chapter, a series of betulin derivatives including 28-acetoxybetulin, 28-tritylbetulin, 28-benzoylbetulin, 3-O-β-D-glucopyranoside of betulin and some betulinic acid conjugate containing amino acid were synthesized and confirmed by MS and NMR.
第五章分别合成得到了乙酰化白桦酯醇、28-苯甲酰化白桦酯醇、28-三苯甲基化白桦酯醇、3-O-β-D-glucopyranoside of betulin和一系列的白桦酯酸苷氨酸的衍生物,并分别对其进行了结构鉴定。
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Aroma components of Hexylalcohol,Benzeneethanol,Butylalcohol,Pentylalcohol, ethyl acetate, Lactic acid ethylester, Butanedioic acid,diethylester, isopentylacohol acetate, acetic acid hexylester, acetic acid phenethylester, hexanoic acid ethylester, ethyl caprylate, decanoic acid ethylester, octanoic acid, linalool andα-terpineol were identified in former kiwi wine reports.
本试验首次在猕猴桃酒中发现了油酸乙酯,棕榈酸乙酯,9-癸烯酸,肉豆蔻酸乙酯,月桂酸乙酯,香茅醇,法呢醇,异薄荷酮香气物质,目前国内外资料中报道的猕猴桃酒香气物质—己醇,苯乙醇,丁醇,戊醇,乙酸乙酯,乳酸乙酯,琥珀酸二乙酯,乙酸异戊酯,乙酸己酯,乙酸苯乙酯,己酸乙酯,辛酸乙酯,癸酸乙酯,辛酸,芳樟醇,α-松油醇等均在本试验研究中也检测出,并得到证实。
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ABSTRACT Inhibition mechanism and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles whose inhibition is caused by chemical adsorption and quaternary ammonium salts whose inhibition is caused by physical adsorption are mainly studied from microscope through quantum chemistry calculation, and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles are studied by making use of model-constructing thought of grey theory in this paper.
本文主要通过量子化学计算,从微观角度研究了化学吸附型缓蚀剂苯腈类化合物和物理吸附型缓蚀剂季铵盐在盐酸溶液中对碳钢缓蚀的缓蚀机理和缓蚀性能与分子结构的关系;并运用灰色理论建模思想,研究了苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀性能与分子结构的关系。其中,通过量子化学计算,从微观角度研究物理吸附型缓蚀剂在盐酸溶液中对碳钢缓蚀的缓蚀机理和缓蚀性能与分子结构的关系,是在尝试着进行;而运用灰色理论建模思想,研究缓蚀剂缓蚀性能与分子结构的关系,是一项具有尝试性和开拓性的工作。
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According to the 13CNMR chemical shifts of substituted benzene, conjugative effect parameter and inductive effect parameter are established.
以取代苯苯环碳原子化学位移为依据,用曾经设定并初步证实的甲基诱导效应和共轭效应参数,讨论了甲基取代基的诱导效应、共轭效应及定位效应。
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The influences of polymerization conditions such as the dosage of cyanobenzene, catalyst, co-catalyst and polymerization temperature on the polymerization (gelation time and monomer conversion) and the swelling value of PDCPD were investigated.
考察了主要反应条件如苯甲腈的用量、聚合反应温度、主催化剂的用量和助催化剂的用量等对聚合反应速率、聚合反应转化率和PDCPD膨胀值的影响,并得到了最优的聚合反应条件:苯甲腈与WCl_6的摩尔比为3,聚合反应温度为70℃,DCPD与WCl_6的摩尔比为1500,Et_2AlCl与WCl_6的摩尔比为11。
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This article describes the performance and feature of XPS ,precautions in construction and comparison with other materi- als and gives positive recommen- dation on using XPS in engineering.
随着建筑的节能降耗日益受到重视,人们越来越关注建筑外墙保温材料的应用,文章详细介绍了挤塑聚苯板的性能特点、施工作业中应特别注意的事项、与其他外墙保温材料使用效果对比,并对在工程中推广使用挤塑聚苯板提出了有益建议。
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This work, concentrated on the asymmetric allylation of aldehydes controlled by different chiral auxiliaries prepared from rotational pure tartaric acid, can be divided into three parts.The first part aims to review the developments of chiral drugs and asymmetric synthesis, from which derived the present research topic backgrounds and works.Synthesis and applications of allylation from aldehydes are the second part of the thesis. By optimizing the reaction conditions, such as solvents, temperature, time and chiral auxiliaries like N,N\'-dibenzyl tartamide, N,N\'-p-dimethylphenyl tartamide, N,N\'-o-dimethylphenyl tartamide, N,N\'-o-dichlorophenyl tartamide, N,N\'-a-dinaphyl tartamide, N,N\'-dicyclohexyl tartamide and N,N\'-diphenyl tartamide, ideal experimenttal conditions are obtained according to HPLC monitoring, as well as the auxiliaries\' recoveries experiments. Starting from benzaldehyde and 3-bromopropaldehyde, N,N\'-dibenzyl tartamide is considered the best auxiliary in this reaction.
本文介绍了醛的不对称烯丙基化反应,以光学纯酒石酸为原料,研究了不同构型手性配体在醛的烯丙基化反应中的立体选择性,全文共分三部分十个章节:第一部分对当前手性药物和手性技术进行了概述,并由此展开了本文的研究背景和任务;第二部分为有机合成部分,对醛的不对称烯丙基化反应进行了深入探讨,以苯甲醛为原料对反应条件进行优化,在优化的反应条件下对制备的七种可回收手性酰胺配体(N-苄基酒石酸二酰胺、N-对甲苯基酒石酸二酰胺、N-邻甲苯基酒石酸二酰胺、N-邻氯苯基酒石酸二酰胺、N-a-萘基酒石酸二酰胺、N-环己基酒石酸二酰胺和N-苯基酒石酸二酰胺)进行筛选,优化配体回收实验条件,最终确定出N-苄基酒石酸二酰胺在苯甲醛的不对称烯丙基化反应中具有较大优越性,结晶回收的手性配体光学纯度保持不变。
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Acetophenone cylic ethylic ketal was synthesized by using acetophenon e and glycol as reactants,and rare-earth solid superacid SO 2- 4-La 3 +/TiO 2 as c atalyst.Factors affecting the product yield were investigated.
以稀土固体超强酸SO2 -4-La3 +/TiO2 为催化剂,苯乙酮和乙二醇为原料催化合成苯乙酮环乙二缩酮,并考察了影响反应的因素。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。