Potential anticonvulsants. V. The condensation of isatins with<i>C</i>-acetyl heterocyclic compounds
作者:F. D. Popp
DOI:10.1002/jhet.5570190327
日期:1982.5
A number of C-acetyl heterocyclic compounds were condensed with isatin and substituted isatins to give a series of 3-hydroxy-3-substituted oxindoles. The products from 2-acetylfuran and isatin, 2-acetylthiophene and isatin, and 2-acetylpyridine and 1-methylisatin were active at 100 mg/Kg in the maximal electroshock seizure test.
Molecular iodine-promoted efficient construction of isatins from 2'-aminophenylacetylenes, 2'-aminostyrenes, and 2'-amino-,beta-ketoesters is developed via oxidative amidation of sp, sp(2), and sp(3) C-H bonds. The reaction involves consecutive iodination, Kornblum oxidation, and intramolecular amidation in a single reactor. The present method meets all of the atom and redox economy principles.
POPP, F. D., J. HETEROCYCL. CHEM., 1982, 19, N 3, 589-592