Synthesis of 1,2-disubstituted benzenes and biphenyls from phthalic acids through electroreduction followed by electrocyclic reaction with alkynes
作者:Toshinobu Ohno、Masato Ozaki、Atsuro Inagaki、Tsuneaki Hirashima、Ikuzo Nishiguchi
DOI:10.1016/s0040-4039(00)77642-8
日期:1993.4
Various substituted 1,2-dihydrophthalic acids were synthesized by electroreduction of phthalic acids in excellent yields. The electrocyclic reaction of 1,2- dihydrophthalic acids or the methyl ester with alkynes gave 1,2-disubstituted benzenes and biphenyls in good yields together with fumaric acid or methyl fumarate.
通过邻苯二甲酸的电还原以优异的产率合成了各种取代的1,2-二氢邻苯二甲酸。1,2-二氢邻苯二甲酸或甲酯与炔烃的电环反应可得到高产率的1,2-二取代的苯和联苯以及富马酸或富马酸甲酯。