THE POTENTIAL USE OF 6-AMINO-5-METHOXY(METHYL)-2,3-DIMETHYL- AND 6-AMINO-5-METHOXY(METHYL)-1,2,3-TRIMETHYLINDOLES IN THE SYNTHESIS OF PYRROLO[2,3-<i>f</i>]QUINOLINES
DOI:
https://doi.org/10.1007/8087Keywords:
6-amino-5-methoxy-2, 3-dimethylindole, 6-amino-5-methoxy-1, 2, 3-trimethylindole, 6-amino-1, 3, 5-tetramethylindole, 6-amino-2, 5-trimethylindole, acetylacetone, acetoacetic ester, pyrrolo[2, 3-f]quinoline, ethyl 4, 4, 4-trifluoroacetoacetateAbstract
The reaction of 6-amino-2,3-dimethyl- and 6-amino-1,2,3-trimethyl-5-methoxy(methyl)indoles with 4,4,4-trifluoroacetoacetic ester and of 6-amino-5-methoxy-1,2,3-trimethylindole also with other β-dicarbonyl compounds has been studied. It was found that all of the amines investigated undergo condensation readily to form the corresponding enamines while the possible subsequent cyclization to give pyrrolo[2,3-f]quinolines was found only for the condensation product of 6-amino-2,3,5-trimethylindole with 4,4,4-trifluoroacetoacetic ester.
How to Cite
Yamashkin, S. A.; Oreshkina, E. A.; Romanova, I. S.; Yurovskaya, M. A. Chem. Heterocycl. Compd. 2006, 42, 86. [Khim. Geterotsikl. Soedin. 2006, 97.]
For this article in the English edition, see DOI 10.1007/s10593-006-0051-0