苯甲醚

And 100%, respectively, under optimized reaction conditions. The existence of electron-donating groups on the benzene ring would enhance the activity of phenols.

使用苯酚作反应底物考察了各因素的影响，在优化的反应条件下，苯酚的转化率可达到99.8％，产物苯甲醚的收率高达99.8％。

Water,Hydrogenated Polyisobutene,Cyclohexasiloxane,Glycerin,Alcohol Denat,Cetearyl Alcohol,PEG-20,Petrolatum,C13-14 Isoparaffin,Zea Mays Oil,Tocopheryl Acetate,Hydroxypropyl Tetrahydropyrantriol,Hydrolyzed Soy Protein,CI 14700/Red 4,Phenoxyethanol,Adenosine,PEG-100 Stearate,Ethylparaben,Triethanolamine,Polyacrylamide,Malus Domestica Stem Cell Culture,CI 19140/Yellow 5,Dimethyl Isosorbide,Dimethicone,Dimethiconol,Limonene,Xanthan Gum,Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate,Linalool,2-Oleamido-1,3-Octadecanediol,Capryloyl Salicylic Acid,Acrylates/C10-30 Alkyl Acrylate Crosspolymer,Passiflora Edulis Seed Oil,Disodium EDTA,Castanea Sativa Seed Extract,Butyrospermum Parkii· Cetyl Alcohol,Butylene Glycol,Octyldodecanol,Cetearyl Glucoside,Methylparaben,Citronellol,Prunus Armeniaca Kernel Oil,Laureth-7,Coumarin,Oryza Sativa Bran Oil,Glyceryl Stearate,Fragrance

水，甘油，氢化聚异丁烯，液体石蜡/矿油，丁二醇，环己硅氧烷，鲸蜡醇，甘油硬脂酸酯，棕榈油，玉米胚芽油，PEG-100硬脂酸酯，白蜂蜡/蜂蜡，肉豆蔻醇肉豆蔻酸酯，石蜡，香精，腺苷，苧烯，山梨醇，CI 14700，CI 19140，稻糠油，杏仁油，EDTA二钠，羟丙基四氢吡喃三醇，苯氧乙醇，聚乙二醇-14M，异十六烷，氢氧化钠，辛基十二醇，季戊四醇四（双-t-丁基羟基氢化肉桂酸）酯，山梨坦三硬脂酸酯，水解大豆蛋白，卡波姆，鸡蛋果籽油，苹果果实提取物，欧洲栗籽提取物，异山梨醇酐二甲醚，聚山梨醇酯-80，辛酰水杨酸，2-油酰胺基-1，3-十八烷二醇，氯苯甘醚，麦芽糖醇，香豆素，黄原胶，微晶蜡，丙烯酰胺/丙烯酰基二甲基牛磺酸钠共聚物，丙二醇，芳樟醇，香茅醇，玉米油，羟苯丙酯，羟苯甲酯

Using Hexamethylenetetramine as the catalyst and P-Hydroxyanisole as the inhibitor, glycidyl methacrylate were prepared by two-step method successfully.

本论文以六次甲基四胺为催化剂，对羟基苯甲醚为阻聚剂，采用酯化闭环两步法制备出甲基丙烯酸缩水甘油酯。

The experiment was performed by linked scan of magnetic field and electrostatic fiels of mass spectrometer.

对苯酚和苯甲醚分子离子分解反应的理论研究结果与质谱磁场／静电场联动扫描的实验结果一致。

The epoxidised cashew nut shell oil acrylate oligomer for UV curing materials was synthe- sized using epoxidised cashew nut shell oil and acrylic acid as main raw materials,N,N-dimethyl- benzylamine as catalyst and p-hydroxyanisole as inhibitor.

以N，N-二甲基苄胺作催化剂、对羟基苯甲醚作阻聚剂，环氧化腰果壳油和丙烯酸为主要原料合成了一种新型的紫外光固化预聚物——环氧化腰果壳油丙烯酸酯。

Tetrachloroterephthalic acid was prepared by chlorinating terephthalic acid, oleumsolvent and iodine catalyst. Tetrachloroterephthalic acid was acylated by sulphurous oxychloride in the presence of DMF to form tetrachloroterephthaloyl chloride. The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. The ester was reduced with potassium borohydride and lithium chloride to give tetrafluoroterephthalyl alcohol. The above product was bromated in the hydrobromic acid to obtain 4-bromomethyl-2,3,5,6-tetrafluoro-benzene methanol. 4-Methyl-2,3,5,-6-tetrafluorobenzene ethanol was obtained by reducing the bromide with magnesium. In the exist of DCC and DMAP, tefluthrin was got by the condensation reaction between 4-methyl-2,3,5,6-tetrafluoro-benzene methanol and-(1RS,3RS)- 3-(2- chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cycolpropanecar-boxylate acid.

对苯二甲酸与氯气在碘存在下以发烟硫酸为溶剂进行氯化制备四氯对苯二甲酸；再以DMF为催化剂与二氯亚砜反应生成四氯对苯二甲酰氯；以氟化钾为氟化剂，环丁砜为溶剂置换氟化，再与甲醇酯化得到四氟对苯二甲酸甲酯；以KBH4-LiCl为还原剂二甲醚为溶剂反应制得四氟对苯二甲基苄醇；以氯苯为溶剂在溴化氢溶液中溴化得到溴化产物；在乙醇溶液中经镁粉还原得到4-甲基-2，3，5，6-四氟苄醇；甲基苄醇与功夫酸在催化剂二环己基碳二亚胺和4-二甲氨基吡啶作用下缩合得到七氟菊酯，总收率达43.6%。

Bone marrow mesenchymal stem cells could differentiate into osteoblasts, adipocytes and neural like cells with osteoblast inductor (β-sodium glycerophosphate, dexamethasone, vitamin C), lipoblast inductor (dexamethasone, 3-isobutyl-1-methylxanthine, bovine insulin, indometacin) and serum-free medium inductor (dimethyl sulphoxide, butylated hydroxyanisole) respectively. Osteoblast marker (alkaline phosphatase, osteocalcin mRNA, calcium node), adipocyte marker (lipid droplet, PPAR γ-2mRNA) and neural cell-like marker (nissl body, neuron specific enolase, neurofilament protein) were respectively determined by the immunohistochemical method, polymerase chain reaction and immunocytochemical method.

分别采用成骨细胞诱导剂（β-甘油磷酸钠，地塞米松，维生素C）、成脂肪细胞诱导液（地塞米松，甲基异丁酸黄嘌呤，牛胰岛素，吲哚美辛）及二甲基亚砜和羟基丁酸苯甲醚无血清培养基诱导剂干预细胞向成骨、脂肪、神经细胞分化，经免疫组织化学染色、PCR、免疫细胞染色方法检测成骨标志物（碱性磷酸酶、骨钙素mRNA、钙结节）、脂肪标志物（脂滴、PPARγ-2mRNA）、以及类神经标志物（尼克氏体、神经烯醇化酶、神经丝蛋白）。

Inside benzene or toluene solvent, in the presence of stannous octoate as catalyst and under the conditions of no water, no oxygen, heating and stirring, MPEG and aliphatic cyclic monomer are ring-opening polymerized to obtain binary block MPEG-aliphatic polyester copolymer.

聚乙二醇单甲醚和脂肪族环酯单体，在苯或甲苯溶剂中，在无水无氧，加热和搅拌的条件下，用辛酸亚锡为催化剂，开环聚合得到聚乙二醇单甲醚-脂肪族聚酯二嵌段共聚物。

Using poly(benzyl-ether) dendrons with thiol functionalities and CNTs/CdS core-shell nanowires as reactants, using chloroform as solvent, through adjusting the temperature and time, soluble CNTs/CdS core-shell nanowires have been obtained.

采用带巯基的聚苯甲醚树枝状分子和CNTs/CdS核壳纳米线在有机溶剂中作用，通过调节反应时间和温度，成功制备了可溶性CNTs/CdS核壳纳米线结构。

Alkylation products were anisole,cresols and xylenols.

反应温度为230℃，250℃和270℃，烷基化产物为苯甲醚、甲酚和二甲酚。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。