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正常赖默—悌曼反应研究:超声波辐射与相转移催化合成方法
On Normal Reimer-Tiemann Reaction Under Ultr asonic Irradiation Techique and With Phase-Transfer Catalysis Metthod
【摘要】 系统研究了正常及反常赖政-悌曼反应(NormalorAbnormalReliner-TiemannReavction,NRYorART);研究了相转移住化方法和超声波辐射技术及其在正常Reliner—Tiemann(NRT)反应中的应用,从而使反应条件温和,效率增加,对邻比大,时间缩短,取得较好收效。
【Abstract】 Systematic investigation was made on normal and abnormal Reimer-tiemann (NRT,ART) reactions and on appications of phase-transfer catalysis (PTC) and ultras onicirradi-ation (USI) techniques to organic synthesis. In this paper, phase-transfercatalysis (PTC)methid and ultrasonic irradiation technique and their combination wereused for performingthe normal Reimer-Tiemann (NRT) reaction. The introduction of thecombination tech-nique took serval advantages: (1) the NRT reaction occours more easily which can be per-formed at room-temperrature (at about 30℃) ; (2) the total yields of twohydroxy-benzaldehydes arises to be higher; (3) the amount of para-substituted priductincreases by alarge scale; (4) the reaction time becomes much shorter.These results show a good applicable prospect of PTC and USI techniques in organnicsynthesis.
【Key words】 reimer-tiemann reaction; ultrasonic irradiation technique; phase-transferc atalysis; organic synthesis; salicyldehyde (SA); o-hydroxybenzaldehyde (OHB); p-hy-droxybenzaldehyde (PHB);
- 【文献出处】 吉首大学学报(自然科学版) ,JOURNAL OF JISHOU UNIVERSITY(NATURAL SCIENCE EDITION) , 编辑部邮箱 ,1997年02期
- 【分类号】O643.3
- 【被引频次】2
- 【下载频次】62