- 更多网络例句与氰氢的相关的网络例句 [注:此内容来源于网络,仅供参考]
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The reaction of calcium L-threonate with hydrogen bromide in acetic acid readily yields (2S, 3S)-2, 4 -dibromo-3 -hydroxy butanoic acid which was further converted into methyl (2s, 3S)-2,4-dibromo-3-hydroxybutanoate by treatment of methanol.
在化合物12上引入氨基甲酰基可用二氯磷异氰酸酯、氯乙酰异氰酸酯或氯磺酰异氰酸酯,随之引入的二氯磷酰基、氯乙酰基或氯磺酰基可分别用碳酸氢钠、N-甲基二硫代氨基甲钠或亚硫酸钠脱去。
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Two ferrocenyl and trimethylsilyl substituted cyanohydrin ethers have been prepared by the addition of trimethysilyl cyanide to two acetyl-substituted ferrocenes: 1-(1-cyano-1-trimethylsilyloxyethyl)-ferrocene (1) and 1, 1'-bis(l-cyano-1-trimethylsilyloxyethyl)ferrocene (2). The structures of these two compounds were characterized by elemental analysis, IR, 1H NMR and X-ray crystallography.
通过两种取代的乙酰基二茂铁与三甲基氰硅烷的加成反应,得到两种取代二茂铁基三甲基硅烷基氰醇醚的晶体:1-(1-氰基-1-三甲基硅烷氧基乙烷基)二茂铁(1),1,1-二(1-氰基-1-三甲基硅烷氧基乙烷基)二茂铁(2),用X射线单晶衍射、元素分析、红外光谱和核磁共振氢谱对分子结构进行了表征。
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The synergistic effects and flame-retardant properties of melamine cyanurate with magnesium hydroxide in halogen-free flame-retardant ethylene vinyl acetate copolymer blends have been studied using the cone calorimeter test, thermogravimetric analysis, laser Raman spectroscopy, limiting oxygen index, UL-94 test, and measurements of rheological properties.
通过锥形量热器试验、热重分析、拉曼光谱分析、氧指数、垂直燃烧试验及流变性能测试,研究了氰尿酸三聚氰胺和氢氧化镁在无卤阻燃乙烯-醋酸乙烯共聚混合物中的协效阻燃作用。
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Study on Surface Enhanced Raman Scattering of Piperidine;2. Using piperidine as catalyst and ethanol as solvent, a series of new 2-amino-3-cyano-4-aryl-6-methoxy-1,4,9,10-tetrahydronaphtho[2,1-b]pyran derivatives were synthesized by one-pot reaction of aromatic aldehydes, malononitrile and 7-methoxy-1,2,3,4-tetrahydronaphthalen-2-one at room temperature in good yields.
以芳醛、丙二腈和 7 甲氧基 1,2 ,3 ,4 四氢萘 2 酮为原料,在六氢吡啶催化下以乙醇为溶剂,在室温合成了一系列新的 2 氨基 3 氰基 4 芳基 6 甲氧基 1,4,9,10 四氢萘并 [2 ,1 b]吡喃衍生物,反应条件温和,产率较高,并通过IR ,1HNMR和元素分析表征产物的结构,还通过单晶X射线衍射分析确证产物的构
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The Mo center of [Mo8](superscript 4)-shows a slight distorted square antiprism coordination environment. The N atoms of cyano groups, acting as acceptors of hydrogen bonds, together with protonate N atoms from organocations and the lattice water, serving as donors of hydrogen bonds, form intricate hydrogen bond interactions, thus generating three-dimensional supramolecular network with the help of π-π interactions of some organocations.
Mo8(上标 4-)离子中,Mo中心处于扭曲的反四棱柱配位环境。8个未配位的氰基氮原子作为氢键的受体,有机阳离子上质子化的氮原子和结晶水作为氢键的给体,形成了丰富的氢键作用,这些氢键作用连同部分有机阳离子间的π-π堆积、阴阳离子间的静电力和Van Der Waals力构筑成三维超分子网络。
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Part III, 12-benzyl dehydroabietyl thioisocyanate was synthesized from methyl 12-benzyl dehydroabietic acid, by hydrolysis, chloride, Curtius reaction to give isocyanate which was hydr- olysied to amine under acidic condition, and with the method of CS2 at last, the maximal excitat- ion wavelength was bathochromic shifted 14nm compared to DDHA-NCS.
第三部分,从12-苯甲酰基脱氢松香酸甲酯出发,经过水解,酰氯化、Curtius reaction得到异氰酸酯,在酸性条件下水解成胺,最后由二硫化碳法得到一种新的荧光衍生试剂12-苯甲酰基脱氢松香酸异硫氰酸甲酯,与DDHA-NCS相比,最大激发波长红移了14nm。
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The 6- cyano-1, 1 (1, 3- dioxypropylidene)-7-(carbomethoxyl group- methyl - 5- oxo-Delt6 (8)- tetrahydrochysene indolizine and haloethane reacts with each other for ethylization with existence of alkali and organic solution with or without phase transversion catalyst, and produces mentioned product.
本发明在相转移催化剂或无相转移催化剂存在下,6-氰基-1,1-(1,3-亚丙二氧基)-7-(甲氧羰基-甲基-5-氧代-Δ6(8)-四氢中氮茚类化合物与卤代乙烷在碱和有机溶剂的存在下进行乙基化反应即得6-氰基-1,1-(1,3-亚丙二氧基)-7-1′-(烷氧羰基-丙基-5-氧代-Δ6(8)-四氢中氮茚类化合物。
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Cycloalkylation of diethyl malonate and ethyl cyanoacetate with alkyl halide was investigated in the presence of toluene.
以甲苯为溶剂及带水剂,用粉末K2CO3代替常规使用的乙醇钠,在季铵盐和聚乙二醇混合相转移催化剂的存在下,含有活泼氢的丙二酸二乙酯和氰乙酸乙酯与二卤代物进行缩合反应,得到相应的环化物。
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Then,some contrastive experiments on producing cyanuric acid by heating up different kinds of solvent to eliminate hydrogen were done.
以不同溶剂加热脱氢生产氰尿酸的收率和纯度做了对比实验,并通过选择确定硅油210 50是一种新型的理想的和廉价的溶剂。
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In this paper, a turbostratic CN precursor was prepared by means of pyrolysis of melamine, then it was treated by high temperature and high pressure. The pyrolysis process of melamine, mechanism of hydrogen elimination and the effect of catalysts on pyrolysis of melamine were studied. The crystal structures, bonding states and chemical compositions of CN precursor obtained by pyrolyzing melamine are analyzed by X ray diffraction, burning spectrum, scanning elecron microscope and Fourier transform infrared Spectroscopy.
本文采用三聚氰胺热解法制备了乱层石墨结构的碳氮前驱物并进行了探索性的高温高压实验;研究了三聚氰胺热解的工艺、去氢机理以及催化剂对三聚氰胺热解过程的影响规律;借助 X 射线衍射、燃烧谱、透射电镜和红外光谱等手段,对获得的碳氮前驱物进行了成分、晶体结构、价键结构的分析。
- 更多网络解释与氰氢的相关的网络解释 [注:此内容来源于网络,仅供参考]
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cyanogen:氰
也称氰化物)是一种有毒的化学成分,工业用途包括开采金矿、捕鱼时用于麻痹鱼只、烟熏船只的杀虫剂等. 吸入过多的山埃气体--氰(cyanogen)足以致死,一些山埃与其他化学成分结合的化合物,例如氰化氢(hydrogen cyanide)都含有剧毒.
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padding:填料
一种表面活性剂;以及一种阻燃组合物. 这些成分为低VOC. 首选阻燃组合物包括一种以锑为基础的化合物;一种卤化的、含活性氢的成分,能与聚异氰酸盐成分反应;和一种卤化的阻燃剂. 这种聚氨酯可在车辆中用作垫圈、封条、填料(padding)等等.
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Behenic acid:山嵛酸
脂肪油中主要为芥酸(Erucic acid),20碳烯-11酸(Eicosenoid acid),油酸、亚油酸、花生酸和亚麻油酸、棕榈酸、硬脂酸、山嵛酸(Behenic acid)的甘油酯等. 芥子甙酶解后生成芥子油、硫酸氢钾及葡萄糖. 芥子油含异硫氰酸的甲酯、异丙酯、丙烯酯、丁酯、仲丁酯、丁烯-3-酯,
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Cyanogenic glycoside:氰苷
二、含氰苷 含氰苷(cyanogenic glycoside)广泛分布于植物界,其中以豆类、禾谷类和玫瑰一些种类最多. 含氰苷本身无毒,但植物破碎后就会释放出有挥发性的毒物氰化氢(HCN). 在完整植物中,含氰苷存在于叶表皮的液泡中,而分解含氰苷的酶--糖苷酶(glycosidase)则存在叶肉中,
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Erucic acid:芥酸
脂肪油中主要为芥酸(Erucic acid),20碳烯-11酸(Eicosenoid acid),油酸、亚油酸、花生酸和亚麻油酸、棕榈酸、硬脂酸、山嵛酸(Behenic acid)的甘油酯等. 芥子甙酶解后生成芥子油、硫酸氢钾及葡萄糖. 芥子油含异硫氰酸的甲酯、异丙酯、丙烯酯、丁酯、仲丁酯、丁烯-3-酯,
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hydrocyanic:氰氢的
hydrocyanic acid 氢氰酸 | hydrocyanic 氰氢的 | hydrodrome 水上滑行船
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hydrocyanic:氰酸的 (形)
hydrocortisone 氢羟肾上腺皮质素 (名) | hydrocyanic 氰酸的 (形) | hydrodynamic 流体动力学的; 水力的 (形)
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hydrocyanide:氢氰化物
hydrocyanic /氰氢的/ | hydrocyanide /氢氰化物/ | hydrocyanism /氢氰酸中毒/
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hydrodrome:水上滑行船
hydrocyanic 氰氢的 | hydrodrome 水上滑行船 | hydrodynamic 水力的
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Ubiquinone:泛醌
CoQ或UQ 泛醌(ubiquinone) 是一种脂溶性的醌类化合物,广泛存在于生物界,其分子中的苯醌结构能可逆地氧化还原,是呼吸链中重要的递氢体. SHAM 水杨基氧肟酸(salicythydroxamic acid)是抗氰呼吸末端氧化酶,即抗氰氧化酶或交替氧化酶的抑制剂.