title: Selective bromocyclization of 2-geranylphenols promoted by phosphite-urea cooperative catalysts.
abstract: 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.
authors: Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya, Japan.
authors: Yasuhiro
authors: Y
authors: Sawamura
authors: Hidefumi
authors: H
authors: Nakatsuji
authors: Matsujiro
authors: M
authors: Akakura
authors: Akira
authors: A
authors: Sakakura
authors: Kazuaki
authors: K
authors: Ishihara
mesh_terms: D002384:Catalysis; D003500:Cyclization; D054879:Halogenation; D008958:Models, Molecular; D008968:Molecular Conformation; D010636:Phenols / Q000737:chemistry*; D017905:Phosphites / Q000737:chemistry*; D013379:Substrate Specificity; D014508:Urea / Q000737:chemistry*
chemical_list: D010636:Phenols; D017905:Phosphites; D014508:Urea
keywords: 2-geranylphenol; N,N’-dimethylurea; bromocyclization; bromophosphonium salt; phosphite; steric effect; urea