This paper studies the synthesis of the Philippines from 9-hydroxy fluorene -9 - formic acid to its bromide process.Raw materials 9-hydroxy fluorene -9-acid with excess HCl together Add flask,in the bath temperature,Mixing electric circumstances,dropping certain amount of potassium bromate solution,so that the reaction of elemental bromine directly with the 9-hydroxy fluorene -9-acid reaction.Was 9-hydroxy fluorene-9-carboxylic acid bromoethyl yield 62-65%.In this paper,as well as potassium bromate in the right quantity of the yield effects are discussed.When the catalyst is 0.06 pm,with the temperature controlled at 80-82 ° C,Link bromine content of 100% is the highest yield.
英语翻译摘要:本文研究了由菲醌合成9-羟基芴-9-甲酸到其溴代的过程.将原料9-羟基芴-9-甲酸与过量浓盐酸一同放入烧瓶