摘要
本工作首先将聚乙二醇用作Reimer-Tiemann反应的相转移催化剂,实验结果表明:采用聚乙二醇-600为相转移催化剂,乙醇作溶剂时,羟基苯甲醛(水杨醛和对羟基苯甲醛)产率为93.9%(以耗酚计)和51.8%(以氯仿计)。并发现在该反应中聚乙二醇和乙醇具有协同作用。
In this paper,polyethylene Glycol(PEG)was first used as phase transfer ca- talyst for Reimer-Tiemann reaction.The results of the experiments show that PEG is a good liquid-liquid transfer catalyst.Under phase transfer condition with Ethanal as solvent and PEG-600 as phase transfer catalyst,the yield of salieyl- ldehyde+P-hydroxylenzaldehyde is 93.9%(besed on phonol consumed)and 51.8% (besed on Chloroform).And we were found that the synergism of C_2H_5OH and PEG.
出处
《晓庄学院自然科学学报》
CAS
1989年第4期318-323,共6页
Journal of Natural Science of Hunan Normal University
关键词
苯酚
取乙二醇
相移催化
R-T反应
phenol
Chloroform
phase shifts
polyethylene oxide/Sallicylaldehyde
O-hydroxybenzaldehyde
P-Hydroxybenzaldehyde
dichlorocarben
Reimer-Tiemann reaction
phase transfer catalyst
