4.3 Article

Selective Bromocyclization of 2-Geranylphenols Promoted by Phosphite-Urea Cooperative Catalysts

Journal

CHIRALITY
Volume 26, Issue 7, Pages 356-360

Publisher

WILEY-BLACKWELL
DOI: 10.1002/chir.22297

Keywords

bromocyclization; bromophosphonium salt; N; N'-dimethylurea; 2-geranylphenol; phosphite; steric effect; urea

Funding

  1. JSPS, KAKENHI [23350039, 24245020]
  2. Program for Leading Graduate Schools Integrative Graduate Education and Research in Green Natural Sciences, MEXT, JAPAN
  3. Grants-in-Aid for Scientific Research [23350039, 11J05091] Funding Source: KAKEN

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Nucleophilic phosphite-urea cooperative catalysts are highly efficient for the bromonium-induced cyclization of 2-geranylphenols. Phosphite-N,N'-dimethylurea catalysts also show moderate activity, probably due to the steric effect of their bent conformation. Chirality 26:355-359, 2014. (c) 2014 Wiley Periodicals, Inc.

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