Mn(III)-based radical addition reactions of 2-nitroindole with activated CH compounds
摘要:
2-Nitroindole undergoes addition reactions with the radicals generated from active CH compounds upon treatment with Mn(OAc)(3)center dot 2H(2)O to afford the corresponding 3-substituted-2-nitroindoles in 27-66% yields. Products of the methylene addition reactions undergo a subsequent in situ Nef reaction to afford 2-oxoindolin-3-ylidenes. (C) 2008 Elsevier Ltd. All rights reserved.
Formation and trapping of azafulvene intermediates derived from manganese-mediated oxidative malonate coupling
作者:Verner A. Lofstrand、Bryan S. Matsuura、Laura Furst、Jagan M.R. Narayanam、Corey R.J. Stephenson
DOI:10.1016/j.tet.2016.03.012
日期:2016.6
oxidant. In the presence of Mn(OAc)3, indole-2, and indole-3-carbonyl compounds were alkylated at the 3- and 2- positions, respectively, with subsequent oxidation and nucleophilic capture occurring at the newly formed benzylic carbon. In contrast, oxidation of 2- and 3-indole carboxylic acids afforded the corresponding 2-oxindol-3-ylidenes and 3-oxindol-2-ylidenes. The reaction conditions, scope, and mechanism
RICHARDS, C. G.;THURSTON, D. E., TETRAHEDRON, 1983, 39, N 10, 1817-1821
作者:RICHARDS, C. G.、THURSTON, D. E.
DOI:——
日期:——
Mn(III)-based radical addition reactions of 2-nitroindole with activated CH compounds
作者:Dmitry A. Androsov、Tara L.S. Kishbaugh、Gordon W. Gribble
DOI:10.1016/j.tetlet.2008.09.020
日期:2008.11
2-Nitroindole undergoes addition reactions with the radicals generated from active CH compounds upon treatment with Mn(OAc)(3)center dot 2H(2)O to afford the corresponding 3-substituted-2-nitroindoles in 27-66% yields. Products of the methylene addition reactions undergo a subsequent in situ Nef reaction to afford 2-oxoindolin-3-ylidenes. (C) 2008 Elsevier Ltd. All rights reserved.
The diels-alder reaction of isoprene with 2-oxoindolin-3-ylidene derivatives
作者:C.G. Richards、D.E. Thurston
DOI:10.1016/s0040-4020(01)88693-2
日期:1983.1
The Diels-Alderreaction of isoprene with eight 2-oxoindoline-3-ylidene derivatives is discussed and the structure and conformation of the adducts assigned by the use of 270 MHz PMR spectroscopy. Some transformations of the adducts are also described.