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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… Click to show full abstract
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.
Keywords:
embedded helicene;
cation;
helicene like;
lewis acid;
trityl cation;
cation embedded
Journal Title: Synthesis
Year Published: 2021
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Journal Title: Synthesis
Year Published: 2021
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!