摘要
以精萘为原料，通过磺化、碱熔制得高纯度的1，5-二羟基萘。最佳反应条件为：磺化温度25℃，酸析pH=5—6，当精萘用量为10g时，溶剂1，2-二氯乙烷的用量45mL。在最佳反应条件下，碱熔收率达90．2％，产品纯度为99．3％。
1,5-Dihydroxynaphthalene was synthesized by sulfonation and alkali fusion using refined naphthalene as raw material. The optimum conditions were as follows： the sulfonation temperature was 25℃ , pH value was 5 -6 for the acid treatment step, when the amount of naphthalene was 10g, 45 mL of solvent 1,2-dichloroethane was used. Under the abovementioned conditions the yield in alkali fusion step can reach 90. 2% with the product purity of 99.3%.
出处
《精细与专用化学品》
CAS
2007年第7期17-18,26,共3页
Fine and Specialty Chemicals
关键词
萘
1
5-二羟基萘
磺化
碱熔
1
2-二氯乙烷
naphthalene
1,5-dihydroxynaphthalene
sulfonation
alkali fusion
1,2-dichloroethane
