bromine

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

该试剂反应件和,选择性好,是一种有效的活泼芳环的化剂。

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

本文利用三氯化铝作催化剂,废聚与发生亲电取代反应合成化聚阻燃剂。

3.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-酰基并咪唑和化钠为原料,在光照件下用氯气置换出化钠中的素,合成兽药噻咪唑中间体-2-(二酰基)-并咪唑氢酸盐。

4.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、基麦芽酚生产中的碱式化镁废渣为原料制取;以、硫和醇合成烷的方法。