17881-58-2Relevant academic research and scientific papers
Novel one-pot synthesis of xanthones via sequential fluoride ion-promoted fries-type rearrangement and nucleophilic aromatic substitution
Fujimoto, Yuuki,Itakura, Ryohei,Hoshi, Hiroki,Yanai, Hikaru,Ando, Yoshio,Suzuki, Keisuke,Matsumoto, Takashi
supporting information, p. 2575 - 2580 (2013/12/04)
A novel and efficient synthesis of xanthones is described. 2-(Trimethylsilyl)phenyl 2-fluorobenzoate derivatives undergo Fries-type rearrangement and intramolecular SNAr reaction in a one-pot sequential manner under fluoride ion-promoted mild conditions. The method provides efficient access to xanthones that have significant steric congestion around the C9 carbonyl, which are not readily available by conventional methods. Georg Thieme Verlag Stuttgart · New York.
Synthesis of 6-alkenyl- and 6-alkynylpurines with cytokinin activity
Brathe, Anders,Gundersen, Lise-Lotte,Rise, Frode,Eriksen, Aud Berglen,Vollsnes, Ane V.,Wang, Linea
, p. 211 - 228 (2007/10/03)
Analogs of the cytokinins trans-zeatin and benzylaminopurine have been prepared by Heck coupling on 6-vinylpurines or Sonogashira coupling on 6- halopurines as key-steps, and their cytokinin activity has been evaluated based on their ability to stimulate
