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Synthesis of indoles from pyridinium salts. 7. Sterically hindered alkyl-3-nitropyridinium salts in the synthesis of indoles

✍ Scribed by M. A. Yurovskaya; A. Z. Afanas'ev; S. L. Druzina; Yu. G. Bundel'

Publisher: Springer US
Year: 1989
Tongue: English
Weight: 464 KB
Volume: 25
Category: Article
ISSN: 0009-3122
DOI: 10.1007/bf00470027

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✦ Synopsis

The introduction of bulky alkyl substituents (iso-Pr,tert-Bu) into any positions of the starting 3-nitropyridinium salt only increases the reaction time and decreases the yields of the corresponding alkylindoles somewhat.

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