Steady-state and laser photolysis studies of substituted 2H-azirines. Spectroscopy, absolute rates, and Arrhenius behavior for the reaction of nitrile ylides with electron deficient olefins
Fe(II)-Catalyzed Amination of Aromatic C−H Bonds via Ring Opening of 2<i>H</i>-Azirines: Synthesis of 2,3-Disubstituted Indoles
作者:Samaresh Jana、Mack D. Clements、Barry K. Sharp、Nan Zheng
DOI:10.1021/ol101130e
日期:2010.9.3
A general method for the synthesis of 2,3-disubstituted indoles is described. The key feature of this method is the amination of aromatic C−H bonds via FeCl2-catalyzed ring opening of 2H-azirines. The method tolerates a variety of functional groups such as Br, F, NO2, OMe, CF3, OTBS, alkenes, and OPiv. The method can also be extended to synthesize azaindoles.
PADWA, A.;ROSENTHAL, R. J.;DENT, W.;FILHO, P.;TURRO, N. J.;HROVAT, D. A.;+, J. ORG. CHEM., 1984, 49, N 17, 3174-3180
作者:PADWA, A.、ROSENTHAL, R. J.、DENT, W.、FILHO, P.、TURRO, N. J.、HROVAT, D. A.、+
DOI:——
日期:——
Steady-state and laser photolysis studies of substituted 2H-azirines. Spectroscopy, absolute rates, and Arrhenius behavior for the reaction of nitrile ylides with electron deficient olefins
作者:Albert Padwa、Robert J. Rosenthal、William Dent、Pedro Filho、Nicholas J. Turro、David A. Hrovat、Ian R. Gould
DOI:10.1021/jo00191a025
日期:1984.8
Synthesis of 2<i>H</i>
-Azirines by Iridium-Catalyzed Decarboxylative Ring Contraction of Isoxazol-5(4<i>H</i>
)-ones
A phosphine‐free iridium‐catalyzed reaction of isoxazol‐5(4H)‐ones (isoxazolones) has been developed, and affords 2H‐azirines through decarboxylation and ring contraction. This method provides an efficient and environmentally benign protocol which could replace the conventional approaches used to synthesize 2H‐azirines.