In situ vinylindole synthesis. Diels-Alder reactions with maleic anhydride and maleic acid to give tetrahydrocarbazoles and carbazoles
作者:Wayland E. Noland、Guang-Ming Xia、Kyle R. Gee、Michael J. Konkel、Mary J. Wahlstrom、John J. Condoluci、Dale L. Rieger
DOI:10.1016/0040-4020(96)00152-4
日期:1996.3
adduct may or may not be acylated at the nitrogen by maleicanhydride. 1,2,3,4-Tetrahydrocarbazole-1,2-dicarboxylic anhydrides have been hydrolyzed to the 1,2-dicarboxylic acids in good yields. The corresponding 1,2-dicarboxylic acids have been regioselectively decarboxylated at the 1-position in excellent yields. New results with the use of maleicacid as the dienophile in this reaction are also discussed