NDLI: The Trityl Cation Embedded into a [7]Helicene-Like Backbone: Preparation and Application as a Lewis Acid Catalyst

Content Provider	Scilit
Author	Oestreich, Martin Gross, Benjamin M.
Copyright Year	2021
Description	The synthesis of a helically chiral carbenium ion is reported. The new motif is essentially a trityl cation embedded into a [7]helicene-like framework. The key step in its preparation establishes the π-extended fluorenone system in one step by an unprecedented palladium-catalyzed carbonylative annulation of a 4,4′-biphenanthryl-3,3′-diyl precursor. The racemic form of the new carbon Lewis acid was found to catalyze a representative set of reactions typically promoted by the trityl cation.
Related Links	http://www.thieme-connect.de/products/ejournals/pdf/10.1055/a-1404-4966.pdf
Ending Page	2516
Page Count	5
Starting Page	2512
ISSN	00397881
e-ISSN	1437210X
DOI	10.1055/a-1404-4966
Journal	Synthesis
Issue Number	14
Volume Number	53
Language	English
Publisher	Georg Thieme Verlag KG
Publisher Date	2021-03-03
Access Restriction	Open
Subject Keyword	Journal: Synthesis Organic Chemistry
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Catalysis

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The Trityl Cation Embedded into a [7]Helicene-Like Backbone: Preparation and Application as a Lewis Acid Catalyst