bromine

bromine in side chain

支链溴

ethane decolorizes bromine water.

乙烷可使溴水褪色。

The paper studied the preparation of bromine from basic Magnesium bromide in the production of maltol and ethyl maltol, the synthesis of bromethyl from bromine, sulfur and alcothol.

研究了以麦芽酚、乙基麦芽酚生产中的碱式溴镁废渣为原制取溴;以溴、硫和乙醇合成溴乙烷的方法。

The brominating agent were used instead of luquid bromine in bromination.

在溴代反应中以溴试剂代替液溴;

The amount of bromine is about 60～70 percent in bromized polystyrene.

阻燃剂的含溴量达60—70%。

any of the chemical elements fluorine or chlorine or bromine or iodine or astatine.

氟、氯、溴、碘、砹中任意一种学元素。

In this paper, bromized polystyrene flame retardant was synthesized by electrophilic substitution of waste polystrene with bromine using aluminium ehlorid as catalyst.

用三氯铝作催剂,废聚苯乙烯与溴发生亲电取代反应合成溴聚苯乙烯阻燃剂。

The products were monobromo-compounds on which the bromine atom occupied the p-position of the activating group.

该试剂反应条件温和,选择性好,是一种有效的活泼芳环的溴剂。

A process for the preparation of 3,4 dihydroxybenzaldehyde from p hydroxybenaldehyde, bromine and potassium hydroxide was studied, which comprises the steps of bromation and hydrolysis.

研究了以对羟基苯甲醛、溴为主要原,经溴代、水解制备3,4二羟基苯甲醛的方法。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰基苯并咪唑和溴钠为原,在光照条件下用氯气置换出溴钠中的溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰基)-苯并咪唑溴酸盐。