Results 181 to 190 of about 4,025 (222)
Some of the next articles are maybe not open access.
[Biotransformation of pyridazines. 1. Pyridazine and 3-methylpyridazine].
Die Pharmazie, 1990Pyridazin (1) and 3-methylpyridazine (6) undergo oxidative biotransformation in an unexpected high degree. Beside the unchanged compounds, after administration of 1 two isomeric monohydroxylated products (2, 3), 4,5-dihydrodihydroxypyridazine (4) and 4,5-dihydroxypyridazine (5) and after administration of 6 one ringhydroxylated 6-derivative (7), 3 ...
H H, Borchert +4 more
openaire +1 more source
ChemInform Abstract: Recent Developments in Pyridazine and Condensed Pyridazine Synthesis
ChemInform, 2009AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Mohamed Hilmy Elnagdi +2 more
openaire +1 more source
ChemInform, 2002
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Samia M. Sayed +3 more
openaire +1 more source
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Samia M. Sayed +3 more
openaire +1 more source
Synthesis of Some Pyridazine Glycosides.
ChemInform, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
Jun-Qian Feng +2 more
openaire +1 more source
The mass spectra of some pyridazines, pyrido‐pyridazines and related compounds
Organic Mass Spectrometry, 1974AbstractThe mass spectral fragmentation behaviour of substituted sulphur containing pyridazines, pyrido (2,3‐d) pyridazines and pyrido‐thiazolo‐pyridazines has been investigated and fragmentation patterns proposed.
V. Kramer +3 more
openaire +1 more source
Pyridazines, Cinnolines, Benzocinnolines and Phthalazines
1964Publisher Summary This chapter discusses the methods of synthesis, properties, spectroscopic analysis and typical reactions characteristic of pyridazines, cinnolines, benzocinnolines, phthalazines, and their derivatives. It describes the derivatives of pyridazines which include its alkyl and aryl derivatives, halogenopyridazines, nitropyridazines ...
John Parrick +2 more
openaire +1 more source
Synthesis of pyrazolo [4,5]pyridazine and isoxazolo [3,4d]pyridazine derivatives
Archives of Pharmacal Research, 1992Arylhydrazones of diethylacetondicarboxylate3 was treated with formaldehyde to give 1-aryl-4,5,6-trihydropyridaine derivatives4a-f Cyclization of compound4a-f by hydroxylamine afforded [3,4d] 1,3,4,5-tetrahydropyridazine derivatives5a-f. Also cyclization of compound4c with semicarbazide gave 1-amidopyrazolo-5-one-1-aryl-3-carboxypyridazine6.
Ikhlass M. Abbass +2 more
openaire +1 more source
Chapter 1 Recent Developments in Pyridazine and Condensed Pyridazine Synthesis
2009Publisher Summary This chapter discusses recent developments in pyridazine and condensed pyridazine synthesis. Today, the pyridazine nucleus and its 3-oxo derivatives have been recognized as versatile pharmacophores. This key subunit is constituted in many biologically active substances with a broad range of biological and pharmaceutical activities ...
Mohamed Hilmy Elnagdi +2 more
openaire +1 more source
Pyridazines. XXXVII. Pyrimido[1,2-b]pyridazines
The Journal of Organic Chemistry, 1971Miha Tisler +2 more
openaire +1 more source