摘要
以苯酚和邻苯二甲酸酐为原料,在使用无水氯化锌、四氯化钛和硫酸作复合缩合剂的条件下,加热进行缩合反应制取酚酞,可以缩短反应时间,提高收率。
Phenolphthalein was obtained by the condensation of phenol with phthalic anhydride in the presence of a new compound condensing agent, which the included anhydivus zinc chloride, titanium tetrachloride and sulfuric acid. Pbenolphthalein could be produced by heating a mixture of phenol, phthalic anhydride and the novel condensing agent. It had been proved that the condensation reaction was carded out in a short time at in high yields.
出处
《化学试剂》
CAS
CSCD
北大核心
2006年第11期697-698,共2页
Chemical Reagents
关键词
酚酞
酚酞的合成
缩合剂
phenolphthalein
synthesis of phcnolphthalein
condensing agent
