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Über den Pyridazinring enthaltende Verbindungen, 16. Elektrophile Substitution des [1,2,4]Triazolo[4,3-b]pyridazins (1983)

Kosáry, Judit ; Gabányi, Zoltán

Weinheim : Wiley-Blackwell

Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 3513-3515

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ISSN: 0009-2940

Keywords: Chemistry ; Inorganic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Studies in the Field of Pyridazine Compounds, 16. Electrophilic Substitution of [1,2,4]Triazolo[4,3-b]pyridazineFormylation and bromination of [1,2,4]triazolo[4,3-b]pyridazine (1) gave the 3-substituted derivatives although HMO and CNDO/2 calculations predicted no activation at this position. An electrostatic potential map of the ring system suggested however a direct effect by lone pairs of electrones at the triazole nitrogens and indicated that a distance of 15 pm above the molecular plane the lowest potential which is associated with C-3.

Additional Material: 1 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cber.19831161023

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