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