乙酸基

MIPC was photocatalytically transformed to 3,4-dihydroxyl hypnone, 2-iso-butyl phenol and acetic acid, and mineralized ultimately in oxygenated TiO2 slurries. The photocatalytic degradation processed according to first order kinetics with the apparent rate constant depending on initial concentration, light intensity and the amount of catalyst. The amount of catalyst had an optimum value (0.5g/L). The apparent rate was inversely proportional to square root of the initial concentration approximately.

MIPC能被光催化转化成3，4-二羟基苯乙酮、2-异丁基苯酚和乙酸等产物并最终被矿化，MIPC的光催化反应过程符合一级动力学规律，其表观速率常数与MIPC的起始浓度、TiO2量和光强等因素有关，MIPC降解的反应速率与入射光强成正比，与MIPC初始浓度的平方根成反比。

D limonene was distributed among the culture flasks (200 mg/L). The flasks were incubated at 28oC on a rotary shaker (r/min=120) for 5 days. On completion, the culture broth were successively extracted with EtOAc. The extract was quantitatively measured by gas chromatography mass spectrometry analysis, The results showed that biocatalytic reactions were comprised of oxidation, including hydroxylation and ketonization which occurred at different positions of the D limonene, as well as hydrogenation, hydrolyzation, esterification and cyclic cleavage. These bacteria strains possess the distinctive biocatalytic capacities towards the D limonene. A series of terpenoids, including sesqui , di and tri terpernoids were also observed,which was accounted for D limonene had influence on the metabolites of marine bacteria.

以2216E为培养基，添加200mg/L的柠檬烯，在28℃，以120 r/min摇瓶培养5 d，用乙酸乙酯提取培养液，经GC MS分析其转化产物，结果显示，这些细菌能在柠檬烯的不同位置进行羟基化、羰基化等，并伴随有还原、水解、酯化、开环等反应，但转化能力和转化程度不同；在产物中，还检测到系列结构不同的其它萜类：包括倍半萜、二萜以及三萜等，这些萜类化合物的产生跟柠檬烯的加入有关，说明柠檬烯能影响细菌代谢产物的产生。

Ee were achieved in the Pd (0)-catalyzed asymmetric reaction of racemic 1, 3-dipheylprop-2-en-1-yl acetate with dimethyl malonate under the optimized reaction conditions.

在钯催化的乙酸1，3-二苯基烯丙基酯与丙二酸二甲酯的不对称反应中，取得了接近定量的收率和较好的对映选择性（71.2％ee）。

This thesis consists of four chapters:Chapter 1: Michael addition of chalcones with active methylene compounds such as diethyl malonate, ethyl acetoacetate and nitromethane catalyzed by potassium hydroxide in anhydrous ethanol results Michael adducts in 72-98% yield under ultrasound irradiation in 25-150min.

第一章：研究了超声辐射下，氢氧化钾催化的查耳酮与活泼亚甲基化合物如丙二酸二乙酯、乙酰乙酸乙酯和硝基甲烷的迈克尔反应。

The objective was to analyze allelopathic effect of oxygenic terpenoid on barnyardgrass. The results show that the main effects ofCarveol,Carvone,Menthone andCarvyl acetate have an downward parabolic curve, whileCedrol shows the opposite.

各单因子的主效应分析结果表明：香芹醇、香芹酮、薄荷酮和香芹基乙酸酯的主效应曲线均为开口向下的抛物线，而雪松醇为开口向上的抛物线。

Water; Glycerin; Sodium Laureth Sulfate; Polyethylene; Acrylates/C10-30 Alkyl Acrylate Crosspolymer; Lauryl Glucoside; Phenoxyethanol; Microcrystalline Wax; Fragrance; Methylparaben; Menthyl Lactate; Sodium Hydroxide; Tetrasodium EDTA; Cellulose; Lactose; Sodium Ascorbyl Phosphate; Acrylates/Ammonium Methacrylate Copolymer; Hydroxypropyl Methylcellulose; Mica; Talc; Titanium Dioxide; Tocopheryl Acetate; Triethyl Citrate; Cucumis Sativus Fruit Extract; Citrus Grandis Fruit Extract; Panax Ginseng Root Extract; Zingiber Officinale Root Extract; Iron Oxides; Red 30; Yellow 5; Yellow 5 Lake

水；甘油；钠Laureth硫酸盐；聚乙烯； Acrylates/C10-30烷基丙烯酸酯Crosspolymer ；十二烷基糖苷； Phenoxyethanol ；微晶蜡；香水； Methylparaben ；薄荷乳酸；氢氧化钠； Tetrasodium乙二胺四乙酸；纤维素；乳糖；钠抗坏血酸磷酸酯；丙烯酸酯/铵甲基丙烯酸共聚物；羟丙基甲基纤维素；云母；滑石粉；二氧化钛； Tocopheryl醋酸；三柠檬酸；黄瓜水果提取物；柚皮果提取物；人参根提取物；生姜根提取物；铁氧化物；红30 ；黄河5 ；黄河5湖

Water; Glycerin; Sodium Laureth Sulfate; Polyethylene; Acrylates/C10-30 Alkyl Acrylate Crosspolymer; Lauryl Glucoside; Phenoxyethanol; Microcrystalline Wax; Fragrance; Methylparaben; Menthyl Lactate; Sodium Hydroxide; Tetrasodium EDTA; Cellulose; Lactose; Sodium Ascorbyl Phosphate; Acrylates/Ammonium Methacrylate Copolymer; Hydroxypropyl Methylcellulose; Mica; Talc; Titanium Dioxide; Tocopheryl Acetate; Triethyl Citrate; Cucumis Sativus Fruit Extract; Citrus Grandis Fruit Extract; Panax Ginseng Root Extract; Zingiber Officinale Root Extract; Iron Oxides; Red 30; Yellow 5; Yellow 5 Lake.

成分Ingredients 水；甘油；钠Laureth硫酸盐；聚乙烯； Acrylates/C10-30烷基丙烯酸酯Crosspolymer ；十二烷基糖苷； Phenoxyethanol ；微晶蜡；香水； Methylparaben ；薄荷乳酸；氢氧化钠； Tetrasodium乙二胺四乙酸；纤维素；乳糖；钠抗坏血酸磷酸酯；丙烯酸酯/铵甲基丙烯酸共聚物；羟丙基甲基纤维素；云母；滑石粉；二氧化钛； Tocopheryl醋酸；三柠檬酸；黄瓜水果提取物；柚皮果提取物；人参根提取物；生姜根提取物；铁氧化物；红30 ；黄河5 ；黄河5湖

Water, methanol and ethyl acetate extraction method were used to extract non-oil components from Myrtus communis Linn. leaves, and then radical scavenging activity and antioxidant role of these extracts were investigated using four chemiluminescence systems and two colorimetric systems.

采用水提取法、甲醇－水提取法和乙酸乙酯提取法3种方法从香桃木叶中提取非精油组分，然后用4种化学发光体系和2种比色体系检测其清除自由基和抗氧化作用。

NAA, CPPU and EBR all induced parthenocarpic growth together with active cell division and enhanced transcripts of cell cycle-related genes.

奈乙酸，N-(2-氯-4-吡啶基)-N-苯基脲和表油菜素内酯都能诱导黄瓜单性结实，加快细胞分裂和提高细胞周期相关基因的表达。

Ethyl alcohol, 3-methyl-4-oxo- pentanoic acid, acetic acid butyl ester, 2-methyl-butanoic acid ethyl ester, diethyl phthalate,-2,4-Decadienal were the same volatiles d from the 10 cultivars.

其中共有组6种，为乙醇、3-甲基-4-羰基戊酸、乙酸丁酯、2-甲基丁酸乙酯、邻苯二甲酸二乙酯、-2，4-癸二烯醛。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。