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J Am Chem Soc ; 144(37): 16749-16754, 2022 09 21.
Artigo em Inglês | MEDLINE | ID: mdl-36083505

RESUMO

Unique examples of aza-Heck-based C(sp3)-H functionalization cascades are described. Under Pd(0)-catalyzed conditions, the aza-Heck-type cyclization of N-(pentafluorobenzoyloxy)carbamates generates alkyl-Pd(II) intermediates that effect C(sp3)-H palladation en route to cyclopropanes. Key factors that control the site selectivity of the cyclopropanation process have been elucidated such that selective access to a wide range of ring- or spiro-fused systems can be achieved.


Assuntos
Carbamatos , Ciclopropanos , Catálise , Ciclização
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