摘要
采用 β-萘酚为基本原料,经Reimer-Tiemann反应合成了2-羟基 -1-萘甲醛,在催化剂存在下进一步与苯乙酸进行缩合反应合成香豆素类荧光增白剂3-苯基 -5,6-苯并α -吡喃酮.该合成工艺反应条件温和,产品总收率达65%,纯度>99%
With β-naphthol as starting material, 2-hydroxy-1-naphthalene carbonal was first synthesized through Reimer-Tiemann reaction. Then in the presence of catalyst, fluorescent whitening agent 3-phenyl-5,6-benzo-α-pyrone was synthesized with the resultant product and phenylacetic acid through condensation. The reaction conditions of this synthetic process are mild and the total product yield is up to 65%, its purity>99%.
出处
《印染助剂》
CAS
北大核心
2002年第2期13-14,共2页
Textile Auxiliaries
关键词
荧光增白剂OM
香豆素类
合成工艺
fluorescent whitening agent OM
coumarin-based
synthesis
