摘要
利用壳聚糖 Ｃ２位上活泼氨基与苯甲醛反应，制得了保护氨基的Ｓｃｈｉｆｆ碱壳聚糖（简称 ＣＴＢ）；再将合成的带有双活性基团的４，４’－二溴二苯并１８－冠－６冠醚与壳聚糖分子的羟基发生反应，得到二苯并１８－冠－６冠醚交联的Ｓｃｈｉｆｆ碱壳聚糖（简称ＣＴＢＤ），在酸性条件下使ＣＴＢＤ脱去苯甲醛，制得二苯并１８－冠－６冠醚交联壳聚糖（简称ＣＴＤ）。其主要中间体及产物的结构经红外光谱、质谱、核磁共振等进行了鉴定。
The C2 amino group in chitosan was protected from the reaction between benzaldehyde and chitosan to form N-benzylidene chitosan (CTB). Chitosan- dibenzo-18-crown-6 bearing Schiff-base group (CTBD) was synthesized by the reaction of chitosan with 4, 4'- dibromod-ibenzo-18-crown-6. Dibenzo-18-crown-6 crown ether crosslinked chitosan was synthesized by the removing of Schiff-base group of CTBD. Their structures were characterized by IR spectral analysis and mass spectroscopic analysis.
出处
《化学试剂》
CAS
CSCD
北大核心
2001年第1期6-7,共2页
Chemical Reagents
基金
教育部博士点基金资助项目!(200048615)
关键词
冠醚
交联壳聚糖
合成
吸附剂
交联剂
chitosan
crown ether
crown ether crosslinked chitosan
synthesis
