乙酸的

Reaction (1) was examined with different kinds of acetal substrate(1) and vinyl ethyl ether, and the results indicated that the 1, 1,3-triethoxy compounds could be obtained in high yields of 88 and 97% respectively when the R groups of the acetal are phenyl and anisyl, while the yields amounted only to 55-75 % for R=a...

有证据表明这种催化反应也可能是通过正碳离子中间体进行的。本反应的产物1，1，3-三乙氧基化合物经乙酸/乙酸钠溶液水解可得反式α，β-不饱和醛。水解产率：芳香族产物大于90%，脂肪族产物大于75%。

Chemical ingredient of the product: Through the essential oil analysis by SRIFFI (short for " Shanghai Research lnstitute of Fragment ＆ Flavor lndustry "), the main ingredient of Ledum palustre oil is as follows:β-pinene 、 p-cymene 、γ-terpineol 、 4-terpineol 、α-terpineol 、 sabinenol 、 nyrtenal 、 bornyl acetate 、 cuninal.

二、产品的化学成份：经上海香料研究所对杜香油的初步分析，发现该油中主要成份有：β-守烯、对-伞花烯、γ-松油醇、 4-松油醇、α-松油醇、桧醇、桃金娘烯醛、乙酸龙脑酯、格茗醛、γ-松油烯-7-醇、乙酸愈创木酯等成份。

Ethyl phenoxyacetate has been synthesised by the reaction of phenol with ethyl chloroacetate under the condition of solid-liquid phase transfer catalysis using PEG-400 as the catalyst.

于固一液相转移催化条件下，以PEG-400为催化剂，通过苯酚与氯乙酸乙酯反应合成了苯氧基乙酸乙酯。与85％的水合肼作用得到相应的酰肼。

After pioneering the development of recent years has become a larger national, Henan The largest amino acid, chloroacetic acid production base.

经过近几年的创业发展，已成为全国较大、河南最大的氨基乙酸、氯乙酸生产基地。

Continuous distillation processes including three-tower,four-tower and five-tower for separation of methyl cyanoacetate were proposed to replace the conventional batch distillation process.

针对氰乙酸甲酯传统的间歇精馏分离过程，提出了连续精馏分离氰乙酸甲酯的三塔、四塔和五塔工艺流程，并对3种分离流程进行工艺分析，确定了连续精馏五塔分离工艺。

In this catalyst system, the Knoevenagel condensations of a series of aromatic aldehydes with malononitrile or ethyl cyanoacetate were programmed and a mechanism was postulated as well. When aromatic aldehydes reacted with ethyl cyanoacetate, the corresponding alkenes proved to be E-isomers by 1H NMR.

在该反应体系中考察了一系列芳香醛和丙二氰、氰基乙酸乙酯的缩合反应，并推测了Knoevenagel缩合反应的机理，芳香醛与氰基乙酸乙酯缩合产物经1H NMR检测为E式烯烃。

When test temperature is 40 C and 50 C (60 C is permissible, in such a case, it shall be recorded) multifibre cloth No.1 containing wool, silk and diacetate or multifibre cloth No.2 containing wool and diacetate shall be used.

测试温度是40 C和50 （ 60 C是允许的，在这种情况下，应作相应的记录），多纤维布一号含有羊毛，丝绸和双乙酸钠或多种纤维布二号含有羊毛和双乙酸钠应用。

Results: Recoveries over 90%,the relative standard deviation of sample (n=6) was 1.8% for dichloroacetic acid and 1.9% for trichloroacetic acid and the detection limit was 0.83 μg/L and 0.4 μg/L respectively.

结果：本法的加标回收率在90%以上，6份平行样品测定的相对标准偏差二氯乙酸为1.8%，三氯乙酸为1.9%，检出限依次为0.83μg/L和0.4μg/L。

Results Qidan Granules could relieve the pain caused by glacial acetic acid and heat stimuli; significantly inhibit the oxytocin-induced dysmenorrheal in mice; It also showed obvious inhibitory effects on the increased capillary permeability induced by glacial acetic acid, carrageen-induced toe edema in rats and dimethylbenzene-induced ear swelling in mice, and cotton pellet-induced granuloma formation in rats. It could also significantly inhibit oxytocin-induced dysmenorrhea in mice.

结果 奇丹颗粒能明显抑制乙酸和热刺激所致的小鼠疼痛反应；对缩宫素所致实验性痛经小鼠具有良好的镇痛作用，对乙酸所致小鼠腹腔毛细血管通透性增高以及大鼠角叉菜胶足趾肿胀、二甲苯所致小鼠耳廓肿胀、大鼠棉球肉芽肿等急慢性炎症模型均有明显抑制作用。

Serotonin (5-HT), its precursors tryptophan and 5-hydroxytryptophan (5-HTP), major metabolites 5-hydroxyindoleacetic acid (5-HIAA); and 3-methoxy-4- hydroxyphenylethylene glycol , homovanillic acid , the respective major metabolites of noradrenaline and dopamine were measured by a method of HPLC.

应用高效液相色谱法测定其中5—羟色胺（5-HT）系列代谢物：色氨酸、5-羟色胺酸（5-HTP）、5-HT、5-羟吲哚乙酸（5-HIAA）；多巴胺的主要代谢产物3-甲氧基-4-羟基苯乙酸；去甲肾上腺素的主要代谢产物3-甲氧基-4-羟基苯乙二醇等。

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。