醚

The originalprocedure has subsequently been replaced by milder and more environmentallyfriendly conditions. We tried to alkylate 3,4,5-trimethoxytoluene by2-allylphenylbenzyl ether in the presence of N-bromosuccinimide.

本实验是在溴代琥珀酰亚胺的作用下使2-烯丙基苯基苄基醚产生苄正离子，苄正离子亲电进攻3，4，5-三甲氧基甲苯从而进行傅氏烷基化反应的。

The melt extrusion mixtures do not include certain additives such as polyoxy- alkylene compounds, alkylmonoethonolamide compounds, alkyldiethanolamine compounds and polyetheramide compounds.

熔体挤出混合物不包括某些添加剂如聚氧化烯化合物、烷基单乙醇酰胺化合物、烷基二乙醇胺化合物和聚醚酰胺化合物。

The products are methyl vinyl ether (cis- and trans-), allyl alcohol and propen-2-ol.

计算得到的丙酮分子的5个异构化反应通道分别对应3种异构化产物，乙烯甲基醚、丙烯醇和1-丙烯-2羟基。

Allyl glycidyl ether was synthesized from allyl alcohol and epichlorohydrin by phase transfer catalysis.

以烯丙醇和环氧氯丙烷为原料，采用相转移催化法，合成了烯丙基缩水甘油醚。

Sodium allylate was prepared from solid sodium hydroxide and allyl alcohol under mild conditions, and then the solid sodium allylate was reacted with epichlorohydrin in anhydrous system to produce allyl glycidyl ether in high yield and purity.

以固体NaOH和烯丙醇为原料在温和条件下制得烯丙醇钠，再以固体烯丙醇钠为原料，与环氧氯丙烷在无水条件下高产率地得到高纯度的烯丙基缩水甘油醚。

Higher content of allyl ether led to higher curability in air.

随着烯丙基醚用量的增加，树脂在有氧状态下的固化反应能力增强。

ResultsThe IC50 of the ethyl acetate extract from Alocasia macrorrhiza to A549, B16, BGC-823 were 94.6, 541.9,629.5 μg·ml-1 respectively,and those of the acetone extract from Alocasia macrorrhiza to A549 and B16 40.9,438.0 μg·ml-1 respectively. But there were quite large dosages of the IC50 of the extracts of cyclohexane, benzine, ethyl alcohol and water from Alocasia macrorrhiza to all kinds of cell lines.

结果海芋醋酸乙酯提取物对A549，B16，BGC-823的IC50分别为94.6， 541.9，629.5 μg·ml-1，丙酮提取物对A549，B16的IC50分别为40.9，438.0 μg·ml-1，而海芋的环己烷，石油醚，乙醇，水提物对各种细胞株的IC50剂量都比较大。

A series of crosslinkable alternating polys containing pendant phenylethynyl groups were synthesized via aromatic nucleophilic substitution reaction. The resultant polymers show good solubility in ordinary organic solvents.

以耐高温高性能树脂-聚芳醚酮作为研究对象，从改善材料的加工工艺性及提高材料的使用温度出发，对含有苯乙炔基的交替共聚物进行了系统研究。

They can be linked to the bulky side group by ester, amide, ether, and imine group.

它们与大体积侧基相联的桥键可以是酯键、酰胺键、醚键，也可以是亚胺键。

The route include three steps: etherification, ammoniation and then oxidation. Factors such as chloracetate, reaction temperature on process were studied. And discussed the ionic liquid was recovered.

讨论了不同的氯乙酸酯和反应温度对醚化反应收率的影响，讨论了不同的二苯甲硫乙酸酯对氨解反应收率的影响，及离子液体的回收使用。

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。