Journal ArticleDOI
Synthesis of pyridazine derivatives—XV: Some electrophilic substitutions on imidazo[1,2-b]-pyridazines
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TLDR
In this paper, NMR data for several imidazo[1,2-b]pyridazines are included and from these conclusive evidence is obtained that electrophilic substitution occurs at position 3.About:
This article is published in Tetrahedron.The article was published on 1968-01-01. It has received 37 citations till now. The article focuses on the topics: Electrophilic substitution & Halogenation.read more
Citations
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Synthesis of pyridazine derivatives—XXVIII
Alfred Pollak,Miha Tišler +1 more
TL;DR: In this paper, a 3,6-substituted bis-s-triazolo-(4,3-b,3′,4′-f)-pyridazine (VIII) was proposed.
Journal ArticleDOI
Correlation of ring nitrogen substituents with carbon‐13 nuclear magnetic resonance data in azoloazines
TL;DR: In this article, a step-wise linear multiple regression with nitrogen substituents in both the 5- and 6-membered rings using pyrrolo[1,2-α]pyridine as the reference for chemical shift correlation was performed.
Journal ArticleDOI
A 15N NMR investigation of some azolopyridines
TL;DR: In this paper, NMR chemical shift data are presented for 14 azolopyridines, together with the results of INDO/S-SOS calculations of nitrogen shieldings.
Journal ArticleDOI
Research on heterocyclic compounds, XLI. 2-Phenylimidazo[1,2-b]pyridazine-3-acetic derivatives: synthesis and anti-inflammatory activity
Antonia Sacchi,Sonia Laneri,F. Arena,Enrico Abignente,Marina Gallitelli,Michele D'Amico,Walter Filippelli,Francesco Rossi +7 more
TL;DR: In this article, the synthesis of a group of 2-phenylimidazo[1,2-b]pyridazine-3-acetic esters and acids is described.
References
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Journal ArticleDOI
Synthesis of pyridazine derivatives—VIII : Imidazo(1,2,-b)pyridazines and some tricyclic aza analogs
Branko Stanovnik,Miha Tišler +1 more
TL;DR: In this article, the derivatives of a new azaheterocycle, imidazo(1,2-b)s-triazolo(3,4-f)pyridazine (V) and its derivatives have been used for convenient syntheses of new heterocyclic systems.
Journal ArticleDOI
Aromaticity in Heterocyclic Systems. IV. Substitution Reactions of Imidazo[1,2-a]pyridine and Related Methyl Derivatives1
John P. Paolini,Roland K. Robins +1 more
Journal ArticleDOI
Ten π-Electron Nitrogen Heterocyclic Compounds. II. Bromination of Imidazo[1,2-a]pyridines
William W. Paudler,H. L. Blewitt +1 more
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Ten-π-Electron Nitrogen Heterocyclic Compounds. IV. The Synthesis, Bromination, and Nuclear Magnetic Resonance Spectra of Some Imidazo[1,2-a]pyrimidines
W. W. Paudler,J. E. Kuder +1 more
Journal ArticleDOI
Über eine Methode zur Bromierung organischer Verbindungen
K. W. Rosenmund,W. Kuhnhenn +1 more
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Synthesis of pyridazine derivatives—VIII : Imidazo(1,2,-b)pyridazines and some tricyclic aza analogs
Branko Stanovnik,Miha Tišler +1 more