Preparation of 5,7-Dinitrobenzofurazan-4-yl Aryl Diketones via Meisenheimer Complexes
- 1 June 1993
- journal article
- research article
- Published by Taylor & Francis in Synthetic Communications
- Vol. 23 (11) , 1569-1576
- https://doi.org/10.1080/00397919308011252
Abstract
New zwitterionic [sgrave]-C-C-bonded Meisenheimer complexes 3 are obtained by treatment of sulfonium ylides 2 with 4,6-dinitrobenzofuroxan 1 . The reaction of 3 with nitric acid affords the 5,7-dinitrobenzofurazan-4-yl aryl diketones 4 .Keywords
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