Results 31 to 40 of about 2,940 (138)

1,2‐Diazetidines − Structure, Synthesis, and Functionalization

European Journal of Organic Chemistry, Volume 29, Issue 19, 22 May 2026.
1,2‐Diazetidines are saturated four‐membered heterocycles featuring two adjacent nitrogen atoms. Despite recent advances in their synthesis and promising potential in medicinal chemistry, the chemistry of these cyclic hydrazines remains underexplored.
Stefan Roesner
wiley   +1 more source

Phosphorescent Platinum(II) Complexes With Diazinedipyrrolide Pincer Ligands: Structure and Photophysical Properties

European Journal of Inorganic Chemistry, Volume 29, Issue 15, 20 May 2026.
A new family of phosphorescent Pt(II) complexes with pyrimidinedipyrrolide ligands, including a pyrazine analog, was designed and synthesized. Their emission properties can be finely tuned via ligand modification, revealing strong phosphorescence originating from intraligand charge transfer transitions.
Marcela Horáková, Alexandre Rico, Filip Bureš, Pascal le Poul, Sébastien Gauthier, Jiří Váňa, Zdeňka Růžičková, Sylvain Achelle   +7 more
wiley   +1 more source

Pyridazines. XI. Pyrido[2, 3-d]pyridazines. II

Chemical and Pharmaceutical Bulletin, 1966
8-Oxo-7, 8-dihydropyrido[2, 3-d]pyridazine-5-carboxylic acid, 7-phenyl-8-oxo-7, 8-dihydropyrido[2, 3-d]pyridazine-5-carboxylic acid, and their esters, amides and hydrazides were prepared. Alkaline hydrolysis of 7-phenyl-8-oxo-7, 8-dihydroprido[2, 3-d]pyridazine-5-carboxylates gave phenylhydrazone of 3-formylpicolinic acid and good yields of 3-(2 ...
Matsuura, Ikutoshi, Yoneda, Fumio, Nitta, Yoshihiro   +2 more
openaire   +2 more sources

Pyridazines. VII. Synthesis of Cyanopyridazines.

Chemical and Pharmaceutical Bulletin, 1963
3-Chloro, 3-methyl, 3-methoxy, 3-benzyloxy, and 3-phenyl-6-cyanopyridazine (III, VI, X, XII, XIV) was synthesized from 3-chloro, 3-methyl, 3-methoxy, 3-benzyloxy, and 3-phenylpyridazine 1-oxide (II, V, IX, XI, XIII).
openaire   +3 more sources

Gas Chromatographic Study of Pyridazine-N-oxides and Pyridazines

The Journal of the Society of Chemical Industry, Japan, 1963
Ichiro Ishizuka, Masaru Ogata
openaire   +2 more sources

Reactions of pyridazines and pyridazine 1-oxides with nitrogen-containing nucleophiles

In dit proefschrift is een orienterend onderzoek beschreven naar het chemisch gedrag van halogeen-pyridazinen en halogeen-pyridazine-N-oxiden met kaliumamide in vloeibare ammoniak, met methanolische ammoniak en met vloeibare ammoniak. Dit onderzoek hangt nauw samen met uitvoerige studies over de reactiviteit van pyridinen, pyrimidinen en pyrazinen, die
openaire   +2 more sources

Comprehensive Risdiplam Synthesis Overview: From Cross-Coupling Reliance to Complete Palladium Independence. [PDF]

Molecules
Korenev G, Nawrozkij MB, Ivanov RA.
europepmc   +1 more source

Design, Synthesis, Antimicrobial Activity and Molecular Docking of New 1,2,4-Triazepine, 1,3,4,6-Oxatriazepine and Pyridazino[1,2-a] Pyrimidine Derivatives. [PDF]

Pharmaceuticals (Basel)
Amri N, Abu-Hashem AA.
europepmc   +1 more source

Evaluating 7‑Aminopyrazolo[4,3‑<i>d</i>]pyrimidines as Human A₁ and A₃ Adenosine Receptor Antagonists. [PDF]

ACS Omega
Georgiou K, Lamprakopoulou M, Buthmann H, Böing S, Pousias A, Dexter A, Chew EXY, Huang X, Michalettou EI, Pearce A, Dotsikas Y, Pouli N, Marakos P, Kolocouris A, Ladds G, Lougiakis N.   +15 more
europepmc   +1 more source

One-Pot Synthesis and Photochemical Diversification of Pyrazolo[1,2-<i>a</i>]pyridazinones into 3D-Rich Scaffolds. [PDF]

J Org Chem
Babnik I, Petek N, Grošelj U, Svete J, Štefane B.   +4 more
europepmc   +1 more source