{
  "abstract": "Despite major advances in photoredox catalysis, photocatalysts capable of oxidizing substrates with E ox > +2.0 V vs SCE remain limited. Herein, we report that a Lewis acid-activated bathophenanthroline (bphen) photoredox system with ZrCl 4 enables intermolecular single-electron oxidation of chloride ( E ox = +2.03 V vs SCE). Under visible-light irradiation, this system promotes Giese-type alkylation of electron-deficient alkenes with a broad range of C(sp 3 )–H donors through chlorine radical-mediated hydrogen atom transfer (HAT). Detailed spectroscopic, electrochemical, kinetic, and computational studies reveal that Lewis acid activation of bphen enhances the excited-state oxidizing power and enables the intermolecular oxidation of chloride to generate a chlorine radical.",
  "abstract_shown": true,
  "affiliations": [
    "Division of Applied Chemistry",
    "Okayama University"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Naoki Oku",
      "orcid": "0009-0009-5847-9943"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Akane Tomita"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Tomoya Miura",
      "orcid": "0000-0003-2493-0184"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/che5af5y1bnsc.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv.15010834/v1",
  "fulltext_url": null,
  "id": "che5af5y1bnsc",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010834/v1",
  "language": null,
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "1605|Radical Photochemical Reactions"
    ]
  ],
  "openalex": "W7223186078",
  "pdf_url": "https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15010834/v1",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/che5af5y1bnsc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:24Z",
      "native_id": "10.26434/chemrxiv.15010834",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010834/v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1605|Radical Photochemical Reactions",
      "subfield": "organic"
    }
  ],
  "title": "Lewis Acid-Activated Bathophenanthroline Photoredox System for Chlorine Radical-Mediated C(sp³)–H Alkylation",
  "title_text": "Lewis Acid-Activated Bathophenanthroline Photoredox System for Chlorine Radical-Mediated C(sp³)–H Alkylation",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:24Z",
  "url": "https://research.draconitic.com/paper/che5af5y1bnsc",
  "venue": "ChemRxiv",
  "versions": []
}