使用1,1,1,2-四氟乙烷和醇作为发泡剂的挤塑乙烯基芳族泡沫塑料。
Extruded vinyl aromatic foam with 1, 1, 1, 2 - tetrafluoroethane and alcohol as blowing agent.
生产了各种芳基三氟甲磺酸酯。
他开发了光致变色材料的二芳基乙烯系列。
He developed the diarylethene family of photochromic materials.
可用于合成各种具芳基胺醇类结构的手性药物。
It can be oriented to produce levo-aromatic and dextro-aromatic alcohols.
详细研究了氟代苯基硼酸和多芳基硼酸的合成及其工艺改进。
The synthesis of fluoro-substituted phenylboronic acid, and multiarylboronic acid and their process improvement were studied in detail.
这些豪华酒店现在由费尔蒙酒店集团管理,包括魁北克的芳堤娜城堡酒店,班弗温泉酒店和落基山的露易斯湖城堡酒店等。
This luxurious collection of hotels (now run by Fairmont) includes Quebec City's Chateau Frontenac, the Banff Springs hotel and Chateau Lake Louise in the Rockies.
二芳基氮氧化物比二烷基氮氧化物还要稳定。
Diaryl nitroxides are even more stable than the dialkyl nitroxides.
芳基上取代基的位置和性质以及使用的溶剂都能够影响非对映体2r,4r和2s, 4r在溶液中的相对含量。
The relative contents of diastereomers, 2r 4r and 2s 4r, in solution are influenced by both the solvents used and the characteristics and locations of substituents on 2-aryl.
二芳基氮氧化物自由基比二烷基氮氧化物自由基还要稳定。
Diaryl nitroxides are even more stable than the dialkyl nitroxides.
目前,设计合成新的具有良好光致变色性能的二芳基乙烯类化合物仍然是该领域的研究热点之一。
At present, the design of new and good photochromic properties of the aryl vinyl compounds is still research in the field of hot spots.
本文报导几种具有不同取代基的芳基丁炔醇的合成和苯基丁炔醇在不同催化条件下的反应性能。
The synthesis of a few Aromatic butynols with different substituting groups and reaction of Phenyl butynols under the different catalysis is described in this paper.
芳基类异戊二烯化合物被认为是高盐和强还原沉积环境中沉积有机质芳烃馏分中的特征性生物标志物。
Aryl isoprenoid compounds in the aromatic fraction of sedimentary organic matter have been regarded as a biomarker that indicates a saline and strongly reducing sedimentary environment.
研究了芳族自由基负离子裂解反应中沿着反应坐标两个势能超曲面可能存在交叉点的问题。
The possible existence of a crossing point between two potential hypersurfaces along the reaction coordinate for the cleavage reactions of aromatic radical anions is studied.
本文研究在氢氧化铯催化下,三甲硅基乙炔与二芳基二硒醚的反应。
It has been researched on the reaction of trimethylsilylacetylene with diphenyl diselenide catalyzed by cesium hydroxide.
联芳基取代吡唑化合物为钠通道阻滞剂,用于治疗疼痛和其它病症。
Biaryl substituted pyrazole compounds are sodium channel blockers useful for the treatment of pain and other conditions.
本论文对二芳基庚烷类天然产物的分布,生物活性,生物合成及化学合成进行了概述。
This thesis describes natural diarylheptanoids from distribution, bioactivity, biosynthesis and synthesis and focuses on the synthesis of several diarylheptanoids.
该文首次论述了在不同的碱性条件下芳环上碳代异戊烯基的方法。参考文献24篇。
In this paper the methods of inducing prenyl into aromatic nucleus under basic condition are discussed for the first time with 24 references.
乙炔基取代的芳族化合物,其合成,聚合物及其用途。
Ethynyl substituted aromatic compounds, its synthesis, polymer and use thereof.
这是第一个用芳基硼酸的磷光光谱对单糖进行识别的研究。
This was the first time to use phosphorescence spectra of aromatic boronic acid for the recognition of carbohydrates.
苯基、氰基、酯基、羧基在反应中不受影响。因此,这一聚合物催化剂特别适用于和芳基、腈基、羧基和酯基相连的双键的氢化。
Thus, this polymer catalyst is especially suited to the hydrogenation of the ethylenic double bonds which are linked to aromatic, cyano, carboxyl and ester groups.
在此条件下,苯乙烯单程转化率可达93.5%,二芳基乙烷的选择性为78.9%。
Styrene conversion of 93.5% and selectivity to diphenylethylane of 78.9% were attained under the optimum condition.
目的研究多芳基取代蝶啶类化合物的合成及其抗肿瘤活性。
Aim To study the synthesis and antitumour activities of some aryl-substituted pteridines.
设计并合成了23个芳酰基硫脲类化合物,95个双取代脲类化合物及25个双取代硫脲类化合物。
Total 23 compounds of Aroyl thiourea scaffold. 95 compounds of bis-substituted urea scaffold, 25 compounds of thiourea scaffold were designed and prepared.
芳基取代聚炔及其衍生物呈现出光电磁等许多新颖的性能。
Aryl substituted polyacetylenes and their derivatives exhibit a lot of novel optical, electric, magnetic properties.
芳基肟胺菊酯类化合物和1,2,4-恶二唑衍生物的合成及其生物活性研究。
Studies on the Synthesis and Biological Activities of Aryl Amidoximyl Chrysanthemumates and 1,2,4-Oxadiazole Derivatives.
芳环上取代基性质对产物分布的可调性具有重要的影响。
The properties of the substituents on aromatic ring would influence whether the product distribution could be controlled conveniently.
可用作治疗剂的噻吩并吡啶的苯并稠合杂芳基酰胺衍生物,包括它的药物组合物,及其使用方法。
Benzofused heterozryl amide derivatives of thienopyridines useful as therapeutic agents, pharmaceutical compositions including the same, and methods for their use.
提出了一种合成芳基氟喹诺酮抗菌剂二氟沙星和替马沙星的新方法。
A new synthetic method for preparing two arylfluoroquinolone antimicrobial agents, difloxacin and temafloxacin, was reported.
提出了一种合成芳基氟喹诺酮抗菌剂二氟沙星和替马沙星的新方法。
A new synthetic method for preparing two arylfluoroquinolone antimicrobial agents, difloxacin and temafloxacin, was reported.
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