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Nucleophilic reactions of 9-Isopropyl-2,4-dimethoxy-7,12-dimethyl-3-(phenylsulfonyl)benzo[a]heptalene with Lithium Dialkylamides


Hansen, H J; El Rayes, S; Linden, A; Abou-Hadeed, K (2011). Nucleophilic reactions of 9-Isopropyl-2,4-dimethoxy-7,12-dimethyl-3-(phenylsulfonyl)benzo[a]heptalene with Lithium Dialkylamides. Heterocycles, 82(2):1195-1202.

Abstract

Treatment of the title compounds with lithium piperidinide in THF at –5 °C leads to an exchange of the two methoxy groups by piperidino substituents (Scheme 2). On the other hand, lithium diisopropylamide (LDA) in THF at –5 °C induces the formation heptaleno-annulated dibenzothiophenes.

Abstract

Treatment of the title compounds with lithium piperidinide in THF at –5 °C leads to an exchange of the two methoxy groups by piperidino substituents (Scheme 2). On the other hand, lithium diisopropylamide (LDA) in THF at –5 °C induces the formation heptaleno-annulated dibenzothiophenes.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2011
Deposited On:07 Dec 2011 12:40
Last Modified:05 Apr 2016 15:08
Publisher:Japan Institute of Heterocyclic Chemistry
ISSN:0385-5414
Publisher DOI:https://doi.org/10.3987/COM-10-S(E)30

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