bromine

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剂。

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

本文利用三氯铝作催剂,废聚苯乙烯与发生亲电取代反应合聚苯乙烯阻燃剂。

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-乙酰基苯并咪唑和钠为原料,在光照条件下用氯气置换出钠中的素,合兽药噻苯咪唑中间体-2-(二乙酰基)-苯并咪唑氢酸盐。

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镁废渣为原料制取;以、硫和乙醇合乙烷的方法。