The potential use of 6-amino-5-methoxy(methyl)-2,3-dimethyl-and 6-amino-5-methoxy(methyl)-1,2,3-trimethyl-indoles in the synthesis of pyrrolo[2,3-f]quinolines |
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| Authors: | S A Yamashkin E A Oreshkina I S Romanova M A Yurovskaya |
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| Institution: | (1) Mordovian N. P. Ogarev State University, Saransk, 430000 Mordovia, Russia;(2) Mordovian M. E. Evsev’ev State Teaching Institute, Saransk, 430007 Mordovia, Russia;(3) M. V. Lomonosov State University, Moscow, 119992, Russia |
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| Abstract: | 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 pyrrolo2,3-f]quinolines was found only for the condensation product of 6-amino-2,3,5-trimethylindole
with 4,4,4-trifluoroacetoacetic ester.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp 97–103, January, 2006. |
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| Keywords: | 6-amino-5-methoxy-2 3-dimethylindole 6-amino-5-methoxy-1 2 3-trimethylindole 6-amino-1 2 3 5-tetramethylindole 6-amino-2 3 5-trimethylindole acetylacetone acetoacetic ester pyrrolo[2 3-f]quinoline ethyl 4 4 4-trifluoroacetoacetate |
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