作者:Eldon G. Nidy、David R. Graber、Paul A. Spinelli、John C. Sih、Roy A. Johnson
DOI:10.1055/s-1990-27091
日期:——
A synthetic route to tercyclohexanones is described in which alkylation of 4-cyclohexylcyclohexanone with the dianion of 4,4-(ethylenedioxy)cyclohexanecarboxylic acid gives 1-carboxy-1′-hydroxyl-1,1′:4′,1″-tercyclohexan-4-one ethylene ketal. Decarboxylative dehydration of the latter followed by hydrolysis of the ketal gives 4-(4′-cyclohexylcyclohexylidene)cyclohexanone. Hydrogenation of this compound gives cis- and trans-1,1′:4′,1″-tecyclohexan-4-one, the latter of which is correlated with authentic trans-1,1′:4′,1″-tercyclohexane.
描述了三环己酮的合成路线,其中 4-环己基环己酮与 4,4-(亚乙二氧基)环己烷羧酸的二元离子发生烷基化反应,得到 1-羧基-1′-羟基-1,1′:4′,1″-三环己烷-4-酮亚乙基缩酮。对后者进行脱羧脱水,然后水解缩酮,得到 4-(4′-环己基-环己亚基)环己酮。对这种化合物进行氢化可得到顺式和反式-1,1′:4′,1″-十环己烷-4-酮,后者与正宗的反式-1,1′:4′,1″-环己烷相关。