The chemistry of aryl-lead(<scp>IV</scp>) tricarboxylates. Reaction with vinylogous β-keto esters
作者:Darren J. Ackland、John T. Pinhey
DOI:10.1039/p19870002689
日期:——
A study of the arylation of ethyl 4-oxocyclohex-2-enecarboxylate and a number of its derivatives by aryl-lead triacetates has been carried out. Ethyl 2-methyl-4-oxocyclohex-2-enecarboxylate (Hagemann's ester)(7), and ethyl 4-oxocyclohex-2-enecarboxylate (10a) and its double bond isomer (10b) were found to undergo regiospecific arylation at C-1 in good yield, whereas the compounds (14) and (16), which
已经进行了4-氧代环己-2-烯基羧酸乙酯及其许多衍生物被芳基-三乙酸铅芳基化的研究。发现2-甲基-4-氧代环己-2-烯基羧酸乙酯(哈格曼酯)(7)和4-氧代环己-2-烯基羧酸乙酯(10a)及其双键异构体(10b)在C-1处具有区域特异性芳基化作用具有良好收率的化合物,而具有C-3取代基的化合物(14)和(16),由于在C-1和C-3处均芳基化而产生的产物收率低。后者的行为也通过含有6-甲基取代基的异构体(20a)和(20b)表现出来。