A three-component reaction by photoinduced electron transfer mechanism with N-protected pyrroles as neutral carbon nucleophiles.

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  • Additional Information
    • Source:
      Publisher: American Chemical Society Country of Publication: United States NLM ID: 2985193R Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-6904 (Electronic) Linking ISSN: 00223263 NLM ISO Abbreviation: J Org Chem Subsets: PubMed not MEDLINE
    • Publication Information:
      Publication: Columbus Oh : American Chemical Society
      Original Publication: Easton, Pa. [etc.]
    • Abstract:
      A new photoinduced three-component reaction between a cyanoarene, an alkene and an N-protected pyrrole has been developed. This reaction extended the scope of the photo-NOCAS reaction by introducing pyrrole as a neutral carbon-centered nucleophile. The cyanoarenes used include tetracyanobenzene (TCB), 2,3,5,6-tetrafluoro-1,4-dicyanobenzene (TFDCB) and 1,4-dicyanobenzene (DCB). N-Methyl, N-phenyl and N-Boc pyrroles are suitable nucleophiles in the reaction. Taking advantage of the strong electron acceptor ability of the singlet excited TCB, a wide range of alkenes, including the highly electron deficient 4-fluoro-, 4-chloro-, 2,3,4,5,6-pentafluorostyrenes and N-methylmaleimide take part in this reaction, leading to the simultaneous 1,2-diarylation of the alkene and the regioselective 2-alkylation of the pyrrole ring via sequential formation of two new C-C bonds between the three reactants.
    • Publication Date:
      Date Created: 20140725 Date Completed: 20150220 Latest Revision: 20140816
    • Publication Date:
      20240829
    • Accession Number:
      10.1021/jo5013114
    • Accession Number:
      25057755