Abstract:
:Atropisomers are important organic frameworks in bioactive natural products, drugs as well as chiral catalysts. Meanwhile, silanols display unique properties compared to their alcohol analogs, however, the catalytic synthesis of atropisomers bearing silanol groups is challenging. Here, we show a rhodium-catalyzed torsional strain-promoted asymmetric ring-opening reaction for the synthesis of α-silyl biaryl atropisomers. The reaction features a dynamic kinetic resolution of C(Ar)-Si bond cleavage, whose stereochemistry was controlled by a phosphoramidite ligand derived from (S)-3-methyl-1-((2,4,6-triisopropylphenyl)sulfonyl)piperazine. This work is a demonstration of an aryl-Narasaka acylation, where the C(Ar)-Si bond cleavage is promoted by the torsional strain of α, α'-disubstituted silafluorene.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Feng J,Bi X,Xue X,Li N,Shi L,Gu Zdoi
10.1038/s41467-020-18273-3subject
Has Abstractpub_date
2020-09-07 00:00:00pages
4449issue
1issn
2041-1723pii
10.1038/s41467-020-18273-3journal_volume
11pub_type
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