A homologous series of substituted quaterenes has been synthesized by the condensation of 2,2-isopropylidenebis[5-(dimethylfurfuryl)furan] with keto acids and their esters. Substituted quaterenes containing chlorine have also been prepared. Only one out of the theoretically possible four geometrical isomeric quaterenes which could arise from the condensation of furan with butanone has been isolated. In all instances where more than one geometrical isomeric quaterene would be theoretically possible, only one has been isolated. Two new dinitro compounds have been prepared by the nitration of 2,2-difurylbutane and 3,3-difurylpentane.
已合成了一系列取代的四环烯类化合物,通过2,2-异丙基亚甲基双[5-(二甲基呋喃基)呋喃]与酮酸及其酯的缩合反应合成。还制备了含氯的取代四环烯类化合物。从呋喃与丁酮缩合可能产生的四种理论上可能的几何异构体四环烯中,只分离出一种。在所有可能出现多种几何异构体四环烯的情况下,只分离出一种。通过对2,2-二呋喃基丁烷和3,3-二呋喃基戊烷进行硝化反应,制备了两种新的二硝基化合物。