醚的

1H NMR spectroscopy, viscometry, and differential scanning calorimetry were employed to characterize this novel type of crown ether-based supramolecular network

我们用氢核磁共振光谱法、粘度测定法和差示扫描量热法来表征这一类新的冠醚基超分子网络。

The acaricidal activity of the extracts of n-butanol and distilled water were not detected in this test.

其中丁香石油醚提取物杀螨活性最为突出，是丁香的主要杀螨活性部位。

Then the extracts of petroleum ether,chloroform,ethyl acetate,n-butanol and distilled water were extracted by solvent extraction,and whose acaricidal activity were detected by killing Psorptes communis cuniculi in vitro.

用石油醚、氯仿、乙酸乙酯、正丁醇、蒸馏水五种溶剂对丁香进行部位提取，采用离体杀螨试验观察各部位提取物的杀螨活性。

Objective To study the protective effects of volatile oil of Acorus tatarinowii Schott andβ-asarone on cardiovascular system.

目的 研究石菖蒲挥发油、β-细辛醚对心血管的保护作用。

Asarone is one of the main component parts in Acorus graninues Soland.

α-细辛醚是天南星科植物石菖蒲中的主要有效成分之一。

The complexes ability for alkalic cation has the high influence on the catalytic activity.

添加与冠醚环直径相匹配的碱金属离子能显著提高催化活性；3。

Provided are a variety of monomers suitable of producing photosensitive polymers, that are in turn, useful in photoresist compositions, through radical polymerization including at least one multi-ring alkenyl ethers and one alpha-fluorinated acrylate.

本发明提供多种单体，所述单体适用于通过包括至少一种多环烯基醚和一种α-氟化丙烯酸酯的自由基聚合制造光敏聚合物，所述光敏聚合物又可用于光致抗蚀剂组合物中。

Novel organic silane of 3,3′-dihydroxyldiphenoxydimethyl alkoxy silane and 3,3′,3-trihydroxyldiphenoxydimethylalkoxy silane triglycidyl ether for epoxy resin modification were synthesized.

研究了含酚羟基有机烷氧基硅烷及3，3′，3-三羟基苯氧基硅烷三缩水甘油醚两种新型有机硅改性剂对双酚F环氧树脂力学性能及热性能的影响。

2-Substituted-3,4-dihydro-1(2H)-isoquinolinones were synthesized from methyl 3-hydroxy-ben- zoates via allyl etherification, Claisen rearrangement, oxidation, reductive amination and aminolysis for the first time.

以3-羟基-4-甲氧基苯甲酸甲酯等为原料，通过烯丙基醚化、Claisen重排、氧化、与伯胺反应、还原、分子内酯的胺解六步反应合成了一系列2-取代-3，4-二氢-1-异喹啉酮类化合物。

Jiangsu Anpon Electrical Chemistry Co., Ltd., Huaian 223002, Jiangsu, China Abstract: 2-Amino-4,6-dimethoxy-1,3,5-triazine, an important intermediate for preparing cinosulfuron, was synthesized utilizing 2,4,6-trichloro-1,3,5-triazine as raw material via ammonization, methoxylation. The purity was 96.0% and the average yield was 90.4%.

江苏安邦电化有限公司，江苏淮安 223002 摘要：2-氨基-4，6-二甲氧基-1，3，5-三嗪是合成醚磺隆的重要中间体，以三聚氯氰为起始原料，经氨化、甲氧基化中试反应得到2-氨基-4，6-二甲氧基-1，3，5-三嗪，纯度为96.0%，平均收率90.4%。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。