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Diastereoselective Cascade Cyclization of Diazoimides with Alkylidene Pyrazolones for Preparation of Pyrazole-Fused Oxa-Bridged Oxazocines.
Wang, Kuo; Zhang, Yue; Cai, Lu-Yu; Song, Xiu-Qing; Wang, Chen; Zhang, Jia-Rui; Pan, Yi-Fan; Zhao, Hong-Wu.
Afiliación
  • Wang K; College of Life Science and Bio-Engineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, China.
  • Zhang Y; College of Life Science and Bio-Engineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, China.
  • Cai LY; College of Life Science and Bio-Engineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, China.
  • Song XQ; College of Life Science and Bio-Engineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, China.
  • Wang C; College of Life Science and Bio-Engineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, China.
  • Zhang JR; College of Life Science and Bio-Engineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, China.
  • Pan YF; College of Life Science and Bio-Engineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, China.
  • Zhao HW; College of Life Science and Bio-Engineering, Beijing University of Technology, No.100 Pingleyuan, Chaoyang District, Beijing 100124, China.
Molecules ; 28(20)2023 Oct 10.
Article en En | MEDLINE | ID: mdl-37894500
Under the catalysis of Rh2(OAc)4 (10 mol%) and binapbisphosphine ligand (±)-L3 (20 mol%) in DCE at 80 °C, the cascade cyclization of diazoimides with alkylidenepyrazolones underwent stereoselectively (dr > 20:1), affording pyrazole-fused oxa-bridged oxazocines in reasonable chemical yields. The chemical structure and relative configuration of title products were firmly identified by X-ray diffraction analysis.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza