Synthesis of calix[4]arene alkylamine derivatives as new phase-transfer catalysts for esterification reaction
作者:Ezgi Akceylan、Mustafa Yilmaz
DOI:10.1016/j.tet.2011.06.050
日期:2011.8
This study reports the synthesis of calix[4]arene-based phase-transfer catalysts derived from the reaction of 5,17-di-tert-butyl-25,27,26,28-tetrahydroxycalix[4]arene with N-ethylpiperazine, diallylamine or 4-benzylpiperidine. The catalytic efficiency of the calix[4]arenes alkylamine derivatives was evaluated by carrying out the ester-forming reaction of alkali metal carboxylates (sodium butyrate or
这项研究报告了由5,17-二叔丁基-25,27,26,28-四羟基杯[4]芳烃与N-乙基哌嗪反应制得的杯芳烃[4]芳烃基相转移催化剂,二烯丙基胺或4-苄基哌啶。通过进行碱金属羧酸盐(丁酸钠或辛酸钠)与对硝基苄基溴的酯形成反应来评估杯[4]芳烃烷基胺衍生物的催化效率。已经发现,使用杯[4]芳烃的N-乙基哌嗪胺衍生物作为相转移催化剂,在25°C的条件下,碱金属羧酸盐与对硝基苄基溴的成酯反应提供了最佳收率。 。