作者:Teruo Synmyozu、Kimitaka Kumagae、Takahiko Inazu、Tamotsu Yoshino
DOI:10.1246/cl.1977.43
日期:1977.1.5
9-tetramethyl homologues, and respective higher cyclic oligomer(s) were synthesized by condensation of tetraethyl p-diethylbenzene-ω,ω,ω′,ω′-tetracarboxylate with 1,4-bis(bromomethyl)-benzene, and its 2,5-dimethyl and 2,3,5,6-tetramethyl homologues in presence of sodium hydride under high dilution condition, respectively. 5,6,8,9-Tetramethyl[3.3]paracyclophane was obtained by hydrolysis, decarboxylative
四乙基 [3.3] 对环芳烷-2,2,11,11-四羧酸酯、其 5,8-二甲基和 5,6,8,9-四甲基同系物,以及各自的高级环状低聚物是通过四乙基 p-二乙苯-ω,ω,ω',ω'-四羧酸与 1,4-双(溴甲基)-苯及其 2,5-二甲基和 2,3,5,6-四甲基同系物在氢化钠存在下,在高稀释条件,分别。5,6,8,9-四甲基[3.3]对环烷是由5,6,8,9-四甲基[3.3]对环烷-2,2,11,11-四甲酸四乙酯经水解、脱羧氯化和还原得到的。