Synthesis of phenyl substituted cyclohexa-1,4-dienes and cyclohexa-2,5-dienones by anodic methoxylation of alkylbiphenyls
作者:Isidoro Barba、Rafael Chinchilla、Cecilia Gómez
DOI:10.1016/s0040-4020(01)90078-x
日期:1990.1
The anodic methoxylation of a series of alkylbiphenyls (2-, 3-, 4-methylbiphenyl, 3,3'-, 4,4'-dimethylhiphenyl, 4-ethylhiphenyl and 4,4'-di-tert-butylbiphenyl) carried out under constant current intensity afforded, in a process of two electrons, a number of cis/trans cyclohexa-1,4-dienes and, in a process of four electrons, a number of cyclohexa-2,5-dienones after acidic hydrolysis of the corresponding
在以下条件下进行的一系列烷基联苯(2-,3-,4-甲基联苯,3,3'-,4,4'-二甲基联苯,4-乙基联苯和4,4'-二叔丁基联苯)的阳极甲氧基化作用恒定电流强度在相应的电子进行酸性水解后,在两个电子的过程中提供了多个顺/反式环己-1,4-二烯,在四个电子过程中提供了多个环己-2,5-二烯。环己-1,4-二烯缩酮。在某些情况下,还获得了侧链取代产物。提出了可能的机制。