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ChemInform Abstract: A New Synthetic Entry to Fused Azaquinones by a Cycloaddition/Ring Transformation Sequence Starting from Pyrido(1,2-a)pyrazines.

✍ Scribed by T. BILLERT; R. BECKERT; P. FEHLING; M. DOERING; H. GOERLS

Publisher: John Wiley and Sons
Year: 2010
Weight: 31 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199730142

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✦ Synopsis

1,2a)pyrazines.

-An expedient one-pot synthesis of the title compounds, which are of interest as chemotherapeutics or as organic dyes, is presented. Mechanistical key steps in this synthesis are a (4 + 2) cycloaddition and a ring opening process followed by 1

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