Photocatalytic α-Tertiary Amine Synthesis via C-H Alkylation of Unmasked Primary Amines.
Angew Chem Int Ed Engl
; 59(35): 14986-14991, 2020 08 24.
Article
en En
| MEDLINE
| ID: mdl-32391968
ABSTRACT
A practical, catalytic entry to α,α,α-trisubstituted (α-tertiary) primary amines by C-H functionalisation has long been recognised as a critical gap in the synthetic toolbox. We report a simple and scalable solution to this problem that does not require any in situ protection of the amino group and proceeds with 100 % atom-economy. Our strategy, which uses an organic photocatalyst in combination with azide ion as a hydrogen atom transfer (HAT) catalyst, provides a direct synthesis of α-tertiary amines, or their corresponding γ-lactams. We anticipate that this methodology will inspire new retrosynthetic disconnections for substituted amine derivatives in organic synthesis, and particularly for challenging α-tertiary primary amines.
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MEDLINE
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En
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Angew Chem Int Ed Engl
Año:
2020
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Article
País de afiliación:
Reino Unido