Reaction of pyrroles with ethyl 2-nitroso- and 2-azo-propenoates, and with ethyl cyanoformate N-oxide: a comparison of the reaction pathways [PDF]
, 2012 The reaction of ethyl 2-nitrosopropenoate 2a with 1 -methylpyrrole, 2.5-dimethylpyrrole and 2.5- diphenylpyrrole has been investigated. In every case the products result from highly regioselective attack at C-2 of the pyrrole by the electrophile.
Gilchrist, Thomas L., Lemos, A.
core
Safe Synthesis of 4,7-Dibromo[1,2,5]thiadiazolo[3,4-d]pyridazine and Its SNAr Reactions
Molecules, 2018 A safe and efficient synthesis of 4,7-dibromo[1,2,5]thiadiazolo[3,4-d]pyridazine from the commercial diaminomaleonitrile is reported. Conditions for selective aromatic nucleophilic substitution of one or two bromine atoms by oxygen and nitrogen ...
Timofey N. Chmovzh +4 more
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Synthesis and Characterization of some Thallium Salt Complexes [PDF]
, 2014 Research into conductive organic and organometallic polymers began in 1977 when Heeger, Macdiarmid, and Shirakawa first doped polyacteylene with Iodine.
Dopierala, Levi
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Thermal Expansion in Dispersion-Bound Molecular Crystals
, 2018 We explore how anharmonicity, nuclear quantum effects (NQE), many-body dispersion interactions, and Pauli repulsion influence thermal properties of dispersion-bound molecular crystals.
Car, Roberto +3 more
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Synthesis, Characterization, and Biological Activity Study of New Heterocyclic Compounds
Engineering ProceedingsThe synthesis of novel heterocyclic compounds is achieved through a multi-step process involving azo dye (S1), ester (S2), and hydrazide (S3). Initially, azo dye (S1) is synthesized through the reaction between resorcinol and p-aminobenzoic acid ...
Shahad M. Alsafy, Nour Abd Alrazzak
doaj +1 more source
Journal of Chemistry, 2013 Three tricyclic ring system, pyridazino[6,1-b]quinazolin-10-ones, benzimidazolo-pyridazine thione, and 1,2,4-benzotriazino-pyridazinethione along with imidazo-[1,2-b]-pyridazinethione, 1,2,4-triazolo[4,3-b]pyridazine-thione derivatives were synthesized ...
Nasser M. Abd El-Salam +3 more
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Acta Chimica Slovenica, 2017 A general four-step transformation of alkyl, cycloalkyl, aryl, and heteroaryl methyl ketones via 3-(dimethylamino)-1-substituted-prop-2-en-1-ones, followed by microwave [2+2] cycloaddition of dimethyl acetylenedicarboxylate, cyclization of (2E,3E)-2 ...
Branko Stanovnik, Benjamin Prek
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Delivering strong 1H nuclear hyperpolarization levels and long magnetic lifetimes through signal amplification by reversible exchange [PDF]
, 2017 Hyperpolarization turns typically weak NMR and MRI responses into strong signals so that ordinarily impractical measurements become possible. The potential to revolutionize analytical NMR and clinical diagnosis through this approach reflect this area's ...
Adams +40 more
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A Pyridazine-Based Fluorescent Probe Targeting Aβ Plaques in Alzheimer’s Disease
Journal of Analytical Methods in Chemistry, 2018 Accumulation of β-amyloid (Aβ) plaques comprising Aβ40 and Aβ42 in the brain is the most significant factor in the pathogenesis of Alzheimer’s disease (AD).
Yong Dae Park +5 more
doaj +1 more source
Electrochemical Characterization and CO2 Reduction Reaction of a Family of Pyridazine-Bridged Dinuclear Mn(I) Carbonyl Complexes [PDF]
, 2023 Jacopo Isopi +7 more
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