Synthesis of some new 4,5-dihydro-6-(4-methoxy-3-methylphenyl)-3(2 H)-pyridazinone derivatives [PDF]
, 2010 The present study describes the synthesis of 4,5-dihydro-6-(4-methoxy-3-methylphenyl)-3(2H)-pyridazinone derivatives. The synthesis of the first target compound, 4,5-dihydro-6-(4-methoxy-3-methylphenyl)-3(2H)-pyridazinone(1), was achieved by Friedel ...
El-Sakka, Sahar, Soliman, Mohamed
core
Utility of N-2-pyridyl-3-oxobutanamide in heterocyclic synthesis: Synthesis of new dihydropyridine, fused pyridine, pyridopyridine, pyridazine and pyridopyrimidinethione derivatives [PDF]
, 2010 2-Aminopyridine was fused with ethyl acetoacetate without solvent for two hours to yield the N-2-pyridyl–3-oxobutanamide 1. However, when the reaction time was increased to 5 hours a structure 3 was obtained.
Abdel Hafiz, I. +2 more
core
Approximating electronically excited states with equation-of-motion linear coupled-cluster theory
, 2015 A new perturbative approach to canonical equation-of-motion coupled-cluster theory is presented using coupled-cluster perturbation theory. A second-order M{\o}ller-Plesset partitioning of the Hamiltonian is used to obtain the well known equation-of ...
Bartlett, Rodney J. +3 more
core +1 more source
Heterocyclic synthesis with ω-bromoacetophenone: Synthesis of some new pyrazole, pyridazine and furan derivatives [PDF]
, 2008 p-Bromophenacylnitrile derivatives 3a,b react with hydrazinederivatives under different conditions to afford the diaminopyrazoles 4a,b, the pyridazine-6-imines 5a,b,and 5-aminopyrazoles 11a,b.
Abdallah, Tayseer A. +2 more
core
Selection rules of surface-enhanced Raman scattering: the role of the out-of-plane vibrations [PDF]
, 2019 The electromagnetic/plasmonic (SERS-PL) and the chemical (usually involving resonant photoinduced metal-adsorbate (M-A) charge transfer processes (SERS-CT:M-A+hn-->M+-A-)) mechanisms are recognized as the two main contributions to the enhancement of a ...
Aranda, Daniel +5 more
core
Synthesis of sulfonamide derivatives containing the structural fragment of pyrazol-1-yl-pyridazine
, 2020 Ljudmila A. Komshina +5 more
openalex +1 more source
A Microwave Step for the Synthesis of 4,5-Dicyanopyridazine: A Great Forerunner to Phthalocyanines
Orbital: The Electronic Journal of Chemistry, 2018 4,5-Dicyanopyridazine (DCP) shows unexpected reactivity with dienophiles via Hetero Diels-Alder. Reactions involving this compound and alkynes or enamines was already described, open possibilities to synthesize precursors for important macromolecules ...
Charles Biral Silva +2 more
doaj
Synthesis and evaluation of polymers for use in early warning fire alarm devices [PDF]
Conjugated polyacetylene polymers and one condensation polyene, all containing a high degree of conjugated unsaturation, were synthesized. These polymers were characterized by chemical analysis and by thermogravimetric analysis, as well as for their film-
Byrd, N. R., Sheratte, M. B.
core +1 more source
Vasorelaxant and antiplatelet activity of 4,7‐dimethyl‐1,2,5‐oxadiazolo[3,4‐d]pyridazine 1,5,6‐trioxide: role of soluble guanylate cyclase, nitric oxide and thiols [PDF]
, 2000 Alexander Y. Kots +12 more
openalex +1 more source
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