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Oxidative Heterocyclization of 2-Alkynylbenzaldehydes with 1,2-Phenylenediamine (2000)

Dyker, Gerald ; Stirner, Wolfgang ; Henkel, Gerald

Weinheim : Wiley-Blackwell

Liebigs Annalen 2000 (2000), S. 1433-1441

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ISSN: 1434-193X

Keywords: Alkynes ; Annelation reactions ; Carbonyl compounds ; Heterocycles ; Polycycles ; Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: ---Upon condensation of ortho-phenylenediamine (2) with ortho-alkynylbenzaldehydes in nitrobenzene, oxidative cyclizations are observed, which result in benzimidazo[2,1-a]isoquinolines (8) or isoindolo[2,1-a]quinoxalines (9) depending on the influence of additional substituents at the alkyne.

Additional Material: 1 Ill.

Type of Medium: Electronic Resource

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