Polycyclic N-Heterocyclic Compounds. 57 Syntheses of Fused Furo(or Thieno)[2,3-b]pyridine Derivatives via Smiles Rearrangement and Cyclization
作者:Takashi Hirota、Kei-ichiroh Tomita、Kenji Sasaki、Kensuke Okuda、Masahiko Yoshida、Setsuo Kashino
DOI:10.3987/com-01-9168
日期:——
An efficient methodology for the synthesis of thieno[2,3-c][2,7] naphthyridine (6), thieno[2,3-c]isoquinoline (11), furo[2,3-c]isoquinoline (14), [1]benzothieno[3,2-d]thieno[2,3-b]pyridine (21), and [1]benzothieno[3,2-d]furo-2,3-b]pyridine (26) skeletons from 4-[o-cyanoarylthio(or oxy)]butyronitriles with base via Smiles type rearrangement reaction followed by the cyclization is described.