Rh2(II)-Catalyzed Synthesis of Carbazoles from Biaryl Azides
摘要:
An array of carbazoles (23 examples) can be synthesized from substituted biaryl azides at 60 degrees C using substoichiometric quantities of Rh-2(O2CC3F7)(4) or Rh-2(O2CC7H15)(4).
AbstractThe nucleophilic iron complex Bu4N[Fe(CO)3(NO)] (TBA[Fe]) catalyzes the direct intramolecular C−H amination of α‐azidobiaryls and (azidoaryl)alkenes into the corresponding carbazoles and indoles, respectively, under mild conditions and with low catalyst loadings. These features and the broad functional‐group tolerance render this method a particularly attractive alternative to established noble‐metal‐based procedures.
The Synthesis of Heterocyclic Compounds from Aryl Azides. I. Bromo and Nitro Carbazoles<sup>1</sup>
作者:Peter A. S. Smith、Bernard Beau Brown
DOI:10.1021/ja01150a008
日期:1951.6
Mendenhall; Smith, Organic Syntheses, Collective, 1973, vol. Vol.V, p. 829