作者:L.W. Schenck、A. Sippel、K. Kuna、W. Frank、A. Albert、U. Kucklaender
DOI:10.1016/j.tet.2005.07.032
日期:2005.9
Diethyl naphthoquinone-2,3-dicarboxylate reacts with different enamines to give 5-oxo-1,5-dihydro-benzo[g]indole-3,4,9b-tricarboxylate derivatives by migration of one ethoxycarbonyl group. These new products aromatize to planar indoles by elimination of one ethoxycarbonylgroup. With an N,N-dimethyl-enamine cyclization yields a 5-oxo-4,5-dihydro-cyclopenta[a]naphthalene-3,3a,4-tricarboxylate as well
萘醌-2,3-二羧酸二乙酯与不同的烯胺反应,通过一个乙氧基羰基的迁移生成5-oxo-1,5-二氢-苯并[ g ]吲哚-3,4,9b-三羧酸酯衍生物。这些新产品通过消除一个乙氧羰基将其芳香化为平面吲哚。通过N,N-二甲基-烯胺环化,通过乙氧基羰基的迁移产生5-氧代-4,5-二氢-环戊[ a ]萘-3,3a,4-三羧酸酯以及萘基-丙二酸衍生物。