The Syntheses of 4,4′-(1,n-Dioxaalkane)-bisbenzaldehydes and 4,4′-(1,n-Dioxaalkane)-bis(α-methoxy Phenylacetic Acids)
作者:Jianjun Jiang、Edward L. Compere
DOI:10.1080/00397919808003072
日期:1998.3.1
acetic acids) were conducted using a base-catalyzed reaction. The reactants were potassium hydroxide (or lithium hydroxide/lithium chloride), bromoform, methanol and 4,4′-(1,n-dioxaalkane)-bisbenzaldehydes. The aldehyde starting materials were prepared using the Williamson ether synthesis, by condensing p-hydroxybenzaldehyde and 1,n-dibromoalkanes with lithium hydride in ethanol. The effect of varying
摘要 4,4'-(1,n-二恶烷)-双(α-甲氧基苯乙酸)的合成采用碱催化反应进行。反应物为氢氧化钾(或氢氧化锂/氯化锂)、溴仿、甲醇和 4,4'-(1,n-二恶烷)-双苯甲醛。醛原料使用威廉姆森醚合成法制备,通过对羟基苯甲醛和 1,n-二溴烷烃与氢化锂在乙醇中的缩合。改变二氧杂烷烃桥单元中烃长度的影响是其酸式盐形成的一个重要考虑因素(桥中 CH2 单元的数量从 2 到 8 个不等)。†当前地址:D-54Z, R-13, Abbott Laboratories, 1401 Sheridan Road, North Chicago, IL 60064-4000。