Results 51 to 60 of about 10,045 (252)
3-Ethoxy-5,6,7,8-tetrahydro-1-hydroxyisoquinoline-4-carbonitrile, C12H14N2O2 [PDF]
, 1985 Mr=218.25, monoclinic, P2l/n, a= 1.33 g cm-3, (Mo Ka) = 0.71069 A, µ=0.86 cm-1, 20.000(2), b = 6.219(1), c=8.794(1)A, β= F(000)= 464, T=298 K. Final R = 0.056 for 136994.31 (2)º, V = 1090.7(4)A3, Z=4 Dx= observed reflections. The pyridine ring is planar,
Briansó, José Luis +3 more
core +2 more sources
Photochemistry of Aromatic N‐Oxides in Water Probed by Time‐Resolved X‐ray Absorption Spectroscopy
Chemistry – A European Journal, EarlyView.Time‐resolved XAS at the nitrogen and oxygen K‐edges is applied to the photorearrangement of two N‐oxides in water. Pyridine N‐oxide rapidly forms the oxaziridine isomer. Pyridazine N‐oxide undergoes ring opening to the diazo compound, without any evidence of intermediates.
Maximilian Paradiz Domínguez +3 more
wiley +1 more source
4,7-Dichloro[1,2,5]oxadiazolo[3,4-d]pyridazine 1-oxide
Molbank, 2018 Dihalogenated derivatives of [1,2,5]chalcogenadiazolo[3,4-d]pyridazines are of interest as precursors for both photovoltaic materials and biologically active compounds.
Timofey Chmovzh +3 more
doaj +1 more source
7-Bromo-[1,2,5]selenadiazolo[3,4-d]pyridazin-4(5H)-one
Molbank, 2021 New heterocyclic systems containing 1,2,5-chalcogenadiazoles are of great interest for the creation of organic photovoltaic materials and biologically active compounds. In this communication, 3,6-dibromopyridazine-4,5-diamine was investigated in reaction
Timofey N. Chmovzh, Oleg A. Rakitin
doaj +1 more source
Chemistry – A European Journal, EarlyView.A photoinduced, regio‐ and chemoselective γ‐alkylation of 2‐silyloxyfurans with a‐bromoketones was achieved by exploiting a photoredox catalytic process promoted by blue light. This approach provides practical and efficient access to chiral, ε‐ketobutenolides, in one step and high yields.
Debora Guazzetti +9 more
wiley +1 more source
4,7-Di(9H-carbazol-9-yl)-[1,2,5]oxadiazolo[3,4-d]pyridazine
Molbank, 2022 Donor–acceptor–donor (D–A–D)-type molecules are considered as a promising class of NIR fluorescence materials. In this communication, 4,7-di(9H-carbazol-9-yl)-[1,2,5]oxadiazolo[3,4-d]pyridazine was obtained by dehydrogenation of 4,7-bis(1,2,3,4,4a,9a ...
Timofey N. Chmovzh +3 more
doaj +1 more source
An easy preparation of pyridinium N-heteroarylaminides [PDF]
, 2004 A synthesis of substituted pyridinium N-heteroarylaminides, e.g., I, is reported. Heteroaryl chlorides underwent nucleophilic substitution with N-aminopyridinium iodide to give the corresponding substituted pyridinium N-heteroarylaminides in good yields.
Burgos García, Carolina +3 more
core +3 more sources
Structural design and property regulation of organic polymers for photocatalytic synthesis of H2O2
InfoScience, EarlyView.Photocatalytic synthesis of H2O2 offers a sustainable approach. Photocatalytic efficiency depends critically on interfacial electron transfer kinetics and spatial charge separation. Herein, we systematically analyze key factors governing photogenerated carrier dynamics and propose engineered strategies to optimize performance, thereby providing design ...
Mingyang Xu +8 more
wiley +1 more source
Journal of Chemistry, 2014 The pyridazine moiety is an important structural feature of various pharmacological active compounds. Synthetic pyridazine compounds have been reported as effective antiprostaglandins (PGs), 5-lipoxygenase (5-LOX), and antiplatelet agents, that is ...
Mohammad Asif
doaj +1 more source
Addition and cycloaddition reactions of Phosphinyl- and Phosphonyl-2H-Azirines, Nitrosoalkenes and Azoalkenes [PDF]
, 2012 An overview of the use of 2H-azirines, conjugated nitrosoalkenes and conjugated azoalkenes bearing phosphorus substituents in addition and cycloaddition reactions is presented, focused on strategies for the synthesis of aminophosphonate and ...
Lemos, A.
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