酯化了的

Iso-butyl cinnamate was synthesized by the esterifiestion of iso-butanol with cinnamic acid with the presence of potassium bisulfate monohydrate.

应用硫酸氢钾催化肉桂酸与异丁醇的酯化反应，合成了肉桂酸异丁酯。

Study on the synthesis of the antistatic agents of didodecyl phosphate and its salts ——The synthesis and technology optimization of didodecyl phosphoryl chloride;2. The synthesis of didodecyl phosphate and its salts by the reaction of 1-dodecanol with phosphorus oxychloride was studied.

研究了以三氯氧磷与月桂醇为原料合成磷酸二月桂酯(C12-DAP)及其盐的工艺条件，考察了反应温度、反应时间和物料配比等因素对酯化反应与水解反应进程的影响，通过优化实验方法，选择了适宜的合成工艺条件。

Reverse-phase chromatography was employed for chiral separation of tropine acid enantiomers on the cellulose tribenzoate chiral stationary phases coated on a small-particle spherical silica support in an eluant system consisting of a mixture of alcohol and water.

摘 要：以乙醇-水流动相，用纤维素-三作为手性固定相对外消旋体托品酸进行了高效液相色谱手性分离考察了不同比例的乙醇-水流动相、不同流速以及用不同醇类酯化对托品酸酯在手性色谱柱上的色谱行为。

The total synthesis of the title compound 10 was accomplished starting from 3,5-dimethoxybenzoic acid (1) and p-hydroxybenzaldehyde (6). In the process, esterification, reduction, bromination and Wittig-Homer reaction were performed.

以3，5-二甲氧基苯甲酸为起始原料，经过甲醇酯化、氢化铝锂还原、四溴化碳溴代和Wittig-Homer反应，高产率的合成了Wittig-Homer试剂(5)。

Novel sodium 2-2-(alkylaryloxy-alkylamidoethanesulfonates (m+nAr-T, m, n: carbon numbers; Ar: aromatic nucleus; T: taurine) with high purity were synthesized through bromization, esterification, Fries rearrangement, Pd-catalyzed hydrogenation, Williamson reaction, and acylation, et al, using carboxylic acid, phenol and taurine as starting materials. The structures and purities were characterized.

以羧酸、苯酚和牛磺酸为原料，通过溴代反应、酯化反应、Fries重排反应、催化氢化反应、Williamson反应以及催化酰胺化反应等过程，首次成功合成并表征了系列结构明确的高纯度N-酰基牛磺酸钠(m+nAr-T，m、n为烷基链碳数，Ar为芳环，T表示taurine)。

The synthetic process of dialkyl phosphate by reaction of long -chain alcohol with phosphorus oxychloride was studied. The influence of molar ratio of reactants, reaction temperature, reaction time on process of esterification and hydrolysis was investigated too.

研究了以三氯氧磷与正构偶数高碳醇为原料合成磷酸二长直链烷基酯(C10～16-DAP)的工艺条件，考察了物料配比、反应温度和反应时间等因素对酯化反应与水解反应进程的影响，通过正交实验方法，确定了优化的合成工艺条件。

The effect of kind of crosslinking agents, the glyoxal dosage, the crosslinking reaction temperature and the crosslinking reaction time on films properties were discussed.

制备了低酯化度玉米淀粉醋酸酯(DS.2)/聚乙烯醇可降解复合膜，重点讨论了交联剂的种类、用量、交联反应温度及时间片复合膜力学性能和耐水性的影响。

Esterification of phenethyl alcohol with acetic acid was studied using lanthanum chloride supported on activated carbon as heterogeneous catalyst.

以活性炭负载三氯化镧为非均相催化剂，对乙酸与苯乙醇之间的酯化反应进行了研究，考察了催化剂用量、醇酸摩尔比、反应时间对乙酸苯乙酯收率的影响。

In this thesis, effects of common factors in yeast extract production with autolysis on yield and total amount of amino acid nitrogen in supernatant, degradation of RNA and saccharides during autolysis were studied, in which fresh baker\'s yeast was used as material. Extraction of 5\'-phosphodiesterase from barley rootlets was also studied. The optimum technology conditions of yeast extract production was determined by comprehensive considering results of above-mentioned study.

本论文以新鲜面包酵母为原料，研究了自溶法生产酵母抽提物过程中的影响因素对得率、上清液氨基氮总量、自溶过程中RNA降解及糖类物质降解的影响，同时还对麦芽根中5'-磷酸二酯酶的提取进行了研究，综合以上研究结果优化了酵母抽提物生产的工艺条件；此外，从酵母自溶残渣中提取了酵母细胞壁多糖，并对该多糖的乳化性及酯化修饰进行了研究，取得了下述主要研究结果。1。

Esterification of acetic acid with isoamyl alcohol catalyzed by ferric chloride was studied,and effect of different factors such as reaction time,dosage of catalyst and ratio of acetic acid to isoamyl alcohol on the yield of isoamyl acetate was carefully examined.

研究了以三氯化铁为催化剂乙酸与异戊醇的酯化反应，考察了反应时间、催化剂用量、醇酸摩尔比等因素对乙酸异戊酯收率的影响。

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。