摘要
以邻氨基苯甲酸为原料 ,用盐酸 -双氧水氯代法制得 5 氯邻氨基苯甲酸 ,产率 40 % ,然后将固体联苯磺酰氯加入至 5 氯邻氨基苯甲酸的吡啶液中 ,合成出荧光发射波长为 550nm的荧光剂 6 氯 2 [5 氯 2 ( 4 联苯磺酰氨基 ) ]苯基 4 苯并恶嗪酮 ,产率提高了 2 0 %。并配制出了两种胶印油墨 :黏度 5 32Pa·s,黏性 4 62 ,细度 1 0 μm ;黏度 31 7Pa·s ,黏性 1 0 30 ,细度 1 0 μm。适用于有效证件的防伪。
Chloro 2 aminobenzoic acid was prepared from 2 aminobenzoic acid by chlorination(hydrochloric acid hydrogen peroxide) in 40% yield.The fluorescent agent with maximum emission wavelength of 550 nm was synthesized by adding 4 biphenylsulfonyl chloride to 5 chloro 2 aminobenzoic acid in pyridine.The volume of pyridine was only 1/4 that reported in the reference 3 while the yield was increased by 20%.Two types of offset printing ink were made(viscosity 5.32 Pa·s,stickiness 4.62,fineness 10 μm and viscosity 31.77 Pa·s,stickiness 10.30,fineness 10 μm),suitable for preventing falsification of the valid credentials.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2000年第8期470-472,共3页
Fine Chemicals
关键词
氯代
荧光剂
油墨
防伪
苯并恶嗪酮
配制
chlorination
fluorescence
ink
falsification preventing
