Organophotoredox-catalyzed intermolecular Oxa-[4+2] cycloaddition reactions

Kenta Tanaka, Daichi Omata, Yosuke Asada, Yujiro Hoshino, Kiyoshi Honda

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


An intermolecular oxa-[4+2] cycloaddition reaction promoted by a thioxanthylium photoredox catalyst under irradiation with green light has been developed. The reaction of ortho-quinone methides with styrenes smoothly affords the desired cycloadducts. Especially styrenes bearing electron-donating groups are efficiently transformed in this reaction. This method represents a sustainable way to carry out oxa-[4+2] cycloaddition reactions using only a catalytic amount of a photocatalyst and visible light.

Original languageEnglish
Pages (from-to)10669-10678
Number of pages10
JournalJournal of Organic Chemistry
Issue number17
Publication statusPublished - Sept 6 2019
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry


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