Photocatalytic deconstructive aliphatic carbon–carbon bond cleavage and functionalization of unactivated alcohols

Adisak Thanetchaiyakup, Kek Foo Chin, Miloš Ðokić, Philip Mark Leetiong Tan, Desmond Junjie Lin, Mitch Mathiew, Xin Zhao, Jerry Zhi Xiong Heng, Daryle Jun Xiong Toh, Xue Wei Liu, Balamurugan Ramalingam*, Han Sen Soo*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

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 languageEnglish
Article number100530
JournalChem Catalysis
Volume3
Issue number3
DOIs
Publication statusPublished - Mar 16 2023
Externally publishedYes

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

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