乙酸乙酯

Results On week 2, 4, 6, the thickness of dermis was 23.22, 24.94, 19.97 μm respectively in mice treated with ethanol extract of Capparis Spinosa, 27.66, 26.15, 22.13 μm respectively in those treated with ethyl acetate extract of Capparis Spinosa.

目的 观察槌果藤乙酸乙酯提取物、乙醇提取物对硬皮病小鼠模型真皮厚度、Ⅰ型、Ⅲ型胶原合成及转化生长因子-β1表达的影响。

Synthesis of ethyl chloroacetate with chloroacetic acid and ethanol catalysed by GdCl2-EDTB-H3SiW12O40was investigated.

研究了反应时间、醇酸比、带水剂用量及催化剂用量对杂多酸化合物GdCl2-EDTB-H3SiW12O40催化合成氯乙酸乙酯的影响，确定了最佳反应条件，醇酸摩尔比1.5∶1，带水剂量10mL，催化剂使用量为酸的1.0%，反应时间2.5h

Chondrus ocellatus was extracted by methanol, ethanol, ethyl ether, ethyl acetate, petroleum ether and acetone, respectively.

采用甲醇、乙醇、乙醚、乙酸乙酯、石油醚、丙酮6种溶剂分别对角叉菜进行冷浸提取。

RESULTS: The optimum ethanol extraction of isofiavones from Cicer arietium L. was 5 times volume percent 60 ethanol,4 times for 1 hours.

结果：筛选最佳乙醇提取工艺条件为：5倍量60%乙醇提取4次，每次1小时；乙酸乙酯萃取，所得总异黄酮含量为22.15%。

METHODS:(1) Ethanol extraction and ethyl acetate purification were used to extract isofiavones from Cicer arietium L.. Orthogonal design was used to optimize the better Ethanol extraction conditions.

(1)以新疆地产鹰嘴豆为原料，经脱脂，乙醇提取，乙酸乙酯萃取，得到总异黄酮，采用正交试验优选出最佳工艺。

The results showed that the ultrasonic extraction is a rather ideal method of extracting red P. tha fortuneana pigment. Cyanidin3glucoside can be hydrolysised to aglycon cyanidin under the conditions of 90℃, 9％HCl and 11min.Silica gel thinlayer chromatography with developping agent benzene∶ethyl acetate∶formic acid = 2∶2∶1 is better to separate cyanidin. Cyanidin is stable to heat and light, unstable to Zn2+ and Fe3+ and Cu2+, insensitive to Co2+ and Bi3+, befitting to acidic condition.

结果表明，超声提取法是提取火棘红色素的较理想方法；矢车菊素3葡萄糖苷在90℃和9％盐酸中水解11 min，可以顺利得到其苷元矢车菊素；以苯、乙酸乙酯、甲酸(2∶2∶1)为展开剂的硅胶薄层层析法分离矢车菊素的效果较好；矢车菊素对热和光较稳定，在酸性条件下稳定，对Co2+和Bi3+不敏感，对Zn2+、Fe3+、Cu2+不稳定。

Potassium zinc phosphate was used as the catalyst for Knoevenagel condensation of benzaldehyde with ethyl cyanoacetate.

以磷酸锌钾为催化剂，催化苯甲醛与氰乙酸乙酯进行Knoevenagel缩合反应。

In contrast to the previous work in which the ILs were used as solvents,[14,15,21] we observed that when this IL was used in a catalytic amount, the Knoevenagel condensation between ethyl cyanoacetate or malononitrile and carbonyl compounds (Scheme 1) could be performed with high efficiency.

和之前离子液体被用作溶剂的工作作为对比，[14，15，21]我们发现使用催化剂量的这种离子液体时，氰基乙酸乙酯或丙二腈和羰基化合物之间的Knoevenagel缩合(图示1)可以体现出高效率。

Catalyzed by KF-Al2O3, Knoevenagel condensation of benzaldehyde with ethyl cyanoacetate under microwave irradiation without solvent has been found to proceed with high yield.

采用KF-Al2O3为催化剂，在无溶剂微波辐射下苯甲醛与氰基乙酸乙酯发生 Knoevenagel 缩合反应，得到了较高的产率，并考察了反应条件对产率的影响。

The basic functionalized ionic liquid, 1 -butyl-3-methylimidazolium hydroxide OH, was prepared and used to catalyze the Knoevenagel condensation of aromatic aldehydes with malononitrile or ethyl cyanoacetate.

合成了碱性功能化离子液体氢氧化1-丁基－3-甲基咪唑，研究了将其作为催化剂催化芳香醛和丙二氰、氰基乙酸乙酯的Knoevenagel缩合反应。

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。