Solid-phase synthesis of 1,2-benzophenazine and some fused imidazole derivatives

Зефиров, Н. С.; Sereda, G. A.; Волков, В. П.; Ткаченко, С. Е.; Зык, Н. В.

doi:10.1007/bf01164789

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Cited by 9 publications

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“…The reaction of a 1,2 or 1,3-dione with a 1,2 or 1,3-diamine classically leads to some perimidines, 26 quinoxalines, 18 or phenazines 25 according to the equations in Scheme 1. A new approach using solid-solid and solvent-free process was applied to these well-known syntheses.…”

Section: Resultsmentioning

confidence: 99%

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Use of co-grinding as a solvent-free solid state method to synthesize dibenzophenazines

Carlier

Baron

Chamayou

et al. 2011

Tetrahedron Letters

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Many synthetic methods exist for dibenzoquinoxalines but only a few for dibenzophenazines and their aza derivatives and even less are 'green'. Some dibenzophenazines and dibenzopyridoquinoxaline have been efficiently obtained with good to excellent yield by a very simple method which does not require use of solvent or catalyst. Solid phase synthesis using co-grinding presents thus many advantages in developing greener synthetic organic pathways.

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Section: Resultsmentioning

confidence: 99%

“…[19][20][21][22] This solid-state synthetic pathway has been developed for only a few organic molecules. 23,24 Benzo[b]phenazine formation has been described by Zefirov 25 starting from unsubstituted reactants.…”

Section: Introductionmentioning

confidence: 99%