Abstract
Carbon–carbon (C–C) bonds are challenging to selectively cleave owing to their chemical inertness and omnipresence in organic molecules; however, they can be targeted during the late-stage modification of natural products and active pharmaceutical ingredients. Herein, we report a selective deconstructive C(sp3)–C(sp3) bond cleavage and difunctionalization of unactivated alcohols mediated by a vanadium visible-light photocatalyst under ambient temperatures and pressures. Our base metal photocatalyst operates via ligand-to-metal charge transfer followed by an inner-sphere C–C bond cleavage to generate alkyl radicals that are trapped with SOMOphiles. We achieved 10 different bond formations on 44 examples using a range of commercially sourced alcohols, including natural products and biomolecules. Our protocol can also be used for the regio- and diastereoselective cyclization to form an α-aminolactone, and for the late-stage functionalization of bioactive oligopeptides to access unnatural amino acid residues.
Original language | English |
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Article number | 100530 |
Journal | Chem Catalysis |
Volume | 3 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 16 2023 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2023 The Author(s)
ASJC Scopus Subject Areas
- Chemistry (miscellaneous)
- Physical and Theoretical Chemistry
- Organic Chemistry
Keywords
- aliphatic alcohol substrates
- aliphatic C–C bond cleavage
- base-metal photocatalysis
- deconstructive functionalization
- photoredox catalysis
- SDG3: Good health and well-being
- SDG9: Industry innovation and infrastructure
- unnatural α-amino acids and oligopeptides