查询词典 ether

Biphenol (8), binaphthol monomethyl ether (9) or 2, 2'-diamino-1, 1'-binaphthalene (10) remained inert in the same condition.

而联苯酚（8）、联萘酚单甲醚（9）和联萘胺（10）在同样条件下不发生反应。

Four kinds of aromatic ether-linked dinitriles with low melting temperatures were obtained via the nucleophilic substitution of hydroquinone, resorcinol, biphenol and bisphenol A with CBN. They were polymerized to afford a series of poly(pheny-s-triazine)s under the optimized conditions.

以对苯二酚、间苯二酚和联苯二酚为原料，分别与对氯苯腈进行亲核取代反应，合成了三种较低熔点的含醚键二腈，并分别研究了其在优化条件下的聚合反应。

A series of sulfonated poly(arylene thioether/ether phosphine oxide)s was prepared by direct polycondensation of sBFPPO and BFPPO with the diphenol-type or dimercapto-type monomers such as hydroquinone, bisphenol-A, 4,4'-biphenol, 4,4'-diphenol (6F), 1,5-dihydroxynaphthalene, 4,4'-dihydroxybiphenyl, and 4,4'-thiobisbenzenethiol, respectively.

将BFPPO与sBFPPO分别与多种二羟基或二巯基单体，如对苯二酚、双酚A、4，4'-二苯酚、双酚F、1，5'-二羟基萘、4， 4'-二羟基二苯硫醚和4，4'-二巯基二苯硫醚，直接共聚制备了一系列磺化聚芳醚三苯基氧膦，侧重考察了二羟基和二巯基单体结构单元对产物的耐氧化性能的影响。

Infra-red spectra of polybrominated biphenyl s and polybrominated biphenyl ether in electronic and electrical appliances were compared with their standard ones to determine if C-Br bond belongs to the characteristic absorption spectra of 650-500 cm ,thus selecting brominate based flame retardants qualitatively.

采用红外光谱法采集电子电气产品中的聚合物部件中多溴联苯和多溴联苯醚的红外谱图，与标准红外谱图对比，判定该部件的谱图中是否有C-Br键在650-500 cm-1间的特征吸收，从而进行溴系阻燃剂的定性筛选。

It was observed that the optimum temperature for the fluorous biphasic regioselective nitrations of toluene, ethylbenzene, flurobenzene, chlorobenzene, bromobenzene, odobenzene and diphenyl ether were 80℃, 60℃, 60℃, 60℃, 80℃, 80℃ and 70℃ respectively. The catalyst had almost no activity when the reaction system contained 25% of water. Simultaneously, increasing the volume ratio of fluorous phase and organic phase in the system in which the fluorous phase can miscible with organic phase could decrease ortho-para ratio.

发现甲苯、乙苯、氟苯、氯苯、溴苯、碘苯加二苯醚的最佳氟两相选择性硝化温度分别为80℃、60℃、60℃、60℃、80℃、80℃和70℃，当加入25%的水时，催化剂已基本失去活性，在氟相和有机相能完全互溶的体系中升高氟相和有机相的体积比有利于降低邻对位比值。

The main products are: phosphorous trichloride 300,000 tons / year, phosphorus oxychloride 100,000 tons / year, phosphorus pentachloride 50,000 tons / year, 10,000 tons trichloroisocyanuric parathion / year chloromethyl ether 5000 tons / year, triethyl phosphite 10,000 tons / year, triphenyl phosphite 5000 tons / year, three phosphoric acid ethyl butoxy 2000 tons / year.

主要产品有：三氯化磷30万吨/年、三氯氧磷10万吨/年、五氯化磷5万吨/年、三氯硫磷1万吨/年、氯甲基甲醚5000吨/年、磷酸三乙酯10000吨/年、磷酸三苯酯5000吨/年、磷酸三丁氧基乙酯2000吨/年。

Methods:The target compound was synthesized using 4-hydrazino-N-methyl-benzyl-sulphonamide hydrochloride and 4,4-dimethoxy-N,N-dimethyl butylamine as the starting materials,PPA and sodium dihydrogen phosphate instead as catalysts and isopropyl ether and acetone as solvents for recrylstallization,via 4-step reactions:condensation,rearrangement,cyclization and salt formtion.

以4-肼基-N-甲基-苄基磺酰胺盐酸盐与4，4-二甲氧基-N，N-二甲基-丁胺为起始原料，改用多聚磷酸和磷酸二氢钠作为催化剂，后处理采用异丙醚和丙酮作为重结晶溶剂，经缩合、重排、环合、成盐的4步反应合成琥珀酸舒马曲坦。

The models of auricular edema in mice by dimethyl benzene and increased permeability of celiac blood capillary by acetic acid were studied,the results showed that the petroleum ether and acetic ester fraction of fermentation product of Calvatia gigantea could inhibit ear edema;acetic ester and n-Butanol fraction of fermentation product could reduce the permeability of celiac blood capillary by acetic acid.

大秃马勃Calvatia gigantea发酵液的石油醚、乙酸乙酯和正丁醇提取物进行二甲苯诱导小鼠耳廓急性炎症和醋酸所致小鼠腹腔毛细血管通透性实验，结果表明大秃马勃Calvatia gigantea发酵液石油醚提取物处理组、乙酸乙酯提取物处理组对二甲苯诱导小鼠耳肿胀具有明显的抑制作用；大秃马勃Calvatia gigantea发酵液乙酸乙酯提取物处理组、正丁醇提取物处理组对醋酸所致小鼠腹腔毛细血管通透性具有明显的抑制作用。

Methods Using petroleum ether to extract crude fat from the Capparis spinosa fruit and identify separately with GC-MS method after methanolysis.

方法］用石油醚提取刺山柑果实中的粗脂肪，甲酯化后，用GC-MS法进行分离鉴定。

Accelerated solvent extraction and Soxhlet extraction were used to extract capparis spinosa seed oil with he-xane and ethyl ether.

采用加速溶剂萃取及索氏提取法，用正己烷和乙醚为提取剂从野西瓜种子中提取油脂，经浓H2SO4催化，甲醇甲酯化处理后，以气相色谱-质谱联用技术鉴定出野西瓜种子中的脂肪酸主要组成为：油酸、亚油酸、硬脂酸等，其中不饱和脂肪酸总量占91.4%，主要成分油酸占73.3%。

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。