该词条未找到_海词词典

您要查找的是不是：

diethanolamine methoxy cinnamate 甲氧基肉桂酸二乙醇胺
ethylhexyl methoxy cinnamate 甲氧基肉桂酸乙基己酯
Methoxy 1 groups are split off with boiling HI and converted to ?? 甲氧基用沸腾的碘氢酸分解，使甲氧基脱落并转为甲基碘。
They were good catalyst for synthesis of n-butyl cinnamate. 它们是催化合成肉桂酸正丁酯的良好催化剂。
An equatorial methoxy group was completely inert to the Grignard reagent. 位于平伏键的甲氧基，则没有这种可能，因而不发生反应。
Amyl cinnamate was synthesized from cinnamic acid and amyl alcohol using tungstosilicic acid as catalyst. 以钨硅酸为催化剂,通过桂酸和戊醇酯化反应合成桂酸戊酯,研究了各有关因素对产品酯化率的影响。
R" is a replaceable function, e. g. acetoxy, methoxy, their acyloxy and alkoxy homologs or halo. R”是取化基，如乙氧基、甲氧基及它们的环氧和烷氧同系物或卤基。
The main component was methoxy-ethyl cinnamate with content of 40.96%, next was ethyl cinnamate with content of 23.68%. 主要成分是对甲氧基肉桂酸乙酯，含量为40.;96%25；其次是肉桂酸乙酯，含量为23
R " is a replaceable function, e. g. acetoxy, methoxy, their acyloxy and alkoxy homologs or halo. 是取化基，如乙氧基、甲氧基及它们的环氧和烷氧同系物或卤基。
Ethyl cinnamate was prepared by one-pot method from 1,3,3,3-tetrachloropropylbenzene with 85.2% yield. 以1;3;3;3-四氯两基苯一锅煮方法制备肉桂酸乙酯;收率达到85.;2%25。
The electric effects of methoxy in ortho-position differ from that in meso-position. 甲氧基处于氨基的邻位的电子效应和处于间位时不同。
Butyl cinnamate was synthesized from cinnamic acid and butyl alcohol using tungstosilicic acid as catalyst. 以钨硅杂多酸为催化剂,通过肉桂酸和正丁醇反应合成肉桂酸正丁酯。
Results showed that the conversion of cinnamate acid were 95.5% and the performance of catalyst were stable. 结果表明，肉桂酸的转化率可达95．5%25，且催化剂的性能稳定。
Methoxy polyethylene glycol(MPEG), which grafted with cellulose diacetate(CDA), was applied as a modifier. 采用聚乙二醇单甲醚(MPEG)作为改性剂,与二醋酸纤维素(CDA)进行接枝反应。
In conclusion, the methoxy in benzene is the very key factor of affinity for the D2 receptor. 推断苯环上R6位甲氧基对苯酰胺类化合物与多巴胺D2受体亲合性起关键性作用。
The main component was methoxy-ethyl cinnamate with content of 40.96%,next was ethyl cinnamate with content of 23.68%. 主要成分是对甲氧基肉桂酸乙酯;含量为40.;96%25;其次是肉桂酸乙酯;含量为23
This article deals with the synthesis of 3 methoxy 4 hydromandelic acid by condensation of guaiacol and glyoxalic acid in akaline condition. 本文研究了在碱性条件下,由愈创木酚和乙醛酸合成3-甲氧基-4-羟基扁桃酸的反应。
A new method of extracting cinnam aldehyde from Cinnamomum cassia Presl bark was put forward. 用少量乙醇溶液润湿肉桂皮,然后加入热水,使渗透到肉桂皮微孔内的乙醇溶液沸腾,强化提取过程。
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。
This article uses the single methoxy polyethylene glycol (mPEG) to ox blood Cu/Zn-SOD modified， and to compare the SOD nature and modified. 本文采用单甲氧基聚乙二醇（mPEG）对牛血Cu/Zn-SOD进行了化学修饰，并对修饰前后SOD的性质进行了比较。