Verdazyl Radicals as Substrates for Organic Synthesis: Unique Access to Tetrahydropyrazolotriazinones, Pyrazolotriazinones and Dihydrotetrazinylacrylonitriles
作者:Eric K. Y. Chen、Matthew Bancerz、Gordon K. Hamer、Michael K. Georges
DOI:10.1002/ejoc.201000789
日期:2010.10
6-oxoverdazyl radical was recently shown to undergo a disproportionation reaction to form an azomethine imine, which reacted with a series of dipolarophiles, to form novel tetrahydropyrazolotetrazinone heterocyclic structures, demonstrating for the first time the use of verdazylradicals as substrates for organicsynthesis. Herein, we report on the chemistry of this verdazylradical with captodative
Neugebauer, Franz A.; Fischer, Hans; Siegel, Rolf, Chemische Berichte, 1988, vol. 121, p. 815 - 823
作者:Neugebauer, Franz A.、Fischer, Hans、Siegel, Rolf
DOI:——
日期:——
Neugebauer, Franz A.; Fischer, Hans, Angewandte Chemie, 1980, vol. 92, # 9, p. 766
作者:Neugebauer, Franz A.、Fischer, Hans
DOI:——
日期:——
The synthesis of a verdazyl radical-derived biphenylophane
作者:Jeremy D. Dang、Gordon K. Hamer、Michael K. Georges
DOI:10.1016/j.tetlet.2012.06.141
日期:2012.9
Biphenylophanes with two stacked biphenyl units are synthetically challenging and consequently are rare. Herein, we report on the synthesis of a [3.3](3,4',3,4')biphenylophane, formed from bifunctional verdazyl radicals. Its formation is surmised to originate from two intermediate verdazyl radical-derived azomethine imines and their subsequent tandem inter-intramolecular 1,3-dipolar cycloaddition reaction with each other. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.