By G. W. H. Chesseman, R. F. Cookson
ISBN-10: 0471382043
ISBN-13: 9780471382041
Offers an account of the practise, homes, and makes use of of the extra vital bi- and tri-cyclic ring platforms incorporating the pyrazine ring. the 1st 18 chapters survey the advancements within the chemistry of quinoxalines because the visual appeal in 1953 of a prior monograph during this sequence. the following 22 chapters give you the first authoritative experiences of the chemistry of such vital similar ring platforms because the pyrrolopyrazines.
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Additional info for The Chemistry of Heterocyclic Compounds, Condensed Pyrazines
Sample text
In a synthesis based on o-nitroaniline, one oxygen atom of the nitro group becomes incorporated in a quinoxaline mono-N-oxide; and in the benzofuroxan-based procedure, the two oxygen atoms of the starting material become incorporated in a quinoxaline di-N-oxide. Studies of the chemistry of 1,2-dihydro-2-oxoquinoxaline4-oxides have revealed unexpected benzenoid substitution reactions and interesting rearrangement reactions. ' 28 I. Methods of Preparation 29 0- 0- 1 I. Methods of Preparation 1. N-Oxidation of Quinoxalines The most convenient reagent for oxidizing quinoxalines to their N oxides is 30% aqueous hydrogen peroxide in acetic acid.
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The Chemistry of Heterocyclic Compounds, Condensed Pyrazines by G. W. H. Chesseman, R. F. Cookson
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