Methyl cis - cinnamate was synthesized from ethyl trans - cinnamate by bromination, dehydrobromination, esterification and catalytic hydrogenation.是什么意思？

Methyl cis - cinnamate was synthesized from ethyl trans - cinnamate by bromination, dehydrobromination, esterification and catalytic hydrogenation.

反式肉桂酸乙酯经溴化 、 脱溴化氢 、 甲酯化和催化氢化合成了顺 式 肉桂酸甲醇.

methyl

n. 甲基，木精；

例句
The extraction mechanism of palladium in chloride system by di ( 1 - methyl heptyl ) acetamide ( N _ ( 503 )) has been studied.
本文研究了N, N二 甲庚基乙酰胺 ( N_ ( s03 ) )从氯化物体系中萃取钯的机理.

cis

n. 顺式的；

例句
The trans - cis photoisomerization of azobenzene is the basis of photo - responsive properties of many azo - functional materials.
偶氮苯的光致顺反异构化是许多偶氮类功能材料光响应的基础.

cinnamate

n. 肉桂酸；

例句
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.

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

synthesized

--

例句
Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.
以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.

from

prep. （表示时间）从…，（表示原因）因为，（表示来源）来自…，（表示分离）与…分离[隔开]；

例句
...an abortive attempt to prevent the current President from taking office.
企图阻止现任总统连任的失败尝试

ethyl

n. 乙荃，乙烷基，乙基；

例句
In benzene or ethyl acetate solution rates increase linearly with methyl methacrylate concentration.
在苯或乙酸乙酯溶液中其衰减速度随甲基丙烯酸甲脂浓度呈直线地增大.

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

bromination

--

例句
METHODS: The target compound was prepared by the bromination and amination reaction.
方法: 用溴代及胺化反应合成了四甲基吡嗪衍生物.

esterification

n. 酯化作用；

例句
A new leather fatliquor product was synthesized by amidation, esterification and neutralization of cotton oil.
以棉油为基本原料,经酰胺化 、 酯化、中和,合成出一种新的皮革加脂剂产品.

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

catalytic

adj. 接触反应的，起催化作用的；n. 催化剂，刺激因素；

例句
...carbon molecules with unusual chemical and catalytic properties.
具有特殊化学性质和催化性的碳分子

hydrogenation

n. 加氢，氢化（作用）；

例句
The said catalyst was a good hydrogenation catalyst for adiponitrile.
Ni-Al-X 催化剂是己二腈加氢的优良催化剂.