Results 61 to 70 of about 14,696 (253)
Chemistry – A European Journal, EarlyView.Successfully applying self‐assembled monolayers with hole‐selectivity for lead‐free tin perovskite solar cells requires judicious investigation with appropriately powerful characterization methods, in addition to efforts in the development of new materials and processing.
Donghoon Song +3 more
wiley +1 more source
Acta Crystallographica Section E Structure Reports Online, 2010 In the title compound, C(14)H(9)BrN(2), the benzene and quinoxaline rings are almost coplanar [r.m.s. deviation = 0.0285 (3) Å and dihedral angle = 2.1 (2)°].
Zhi-jian Wang +4 more
openaire +3 more sources
Vanillin: A Promising Biosourced Building Block for the Preparation of Various Heterocycles
Frontiers in Chemistry, 2022 The preparation of heterocyclic compounds often involves the use of petroleum-based or non-renewable sources. Considering the actual societal and environmental awareness towards sustainable chemistry, new and green sources of organic carbon are sought ...
David Gendron
doaj +1 more source
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
Acta Crystallographica Section E Structure Reports Online, 2012 In the title compound, C14H9FN2, the dihedral angle between the benzene ring and the quinoxaline ring system is 22.2 (3)°. Any aromatic π–π stacking in the crystal must be very weak, with a minimum centroid–centroid separation of 3.995 (2) Å.
Cui-Ping Wang +4 more
openaire +3 more sources
Molecules, 2010 A microwave-induced iodine-catalyzed simple, rapid and convenient synthesis of different types of quinoxalines via condensation of 1,2-diamines with 1,2-dicarbonyl compounds has been accomplished with an excellent yield.
Debasish Bandyopadhyay +3 more
doaj +1 more source
Food Frontiers, EarlyView.ABSTRACT In recent years, rising consumption of mushroom‐based foods has highlighted concerns over the formation of harmful Maillard reaction products (HMRPs) during thermal processing. However, limited information is available on the occurrence of intermediate and advanced HMRPs, such as α‐dicarbonyl compounds (α‐DCs) and advanced glycation end ...
Yong Li +9 more
wiley +1 more source
FlexMat, EarlyView.A blue‐hazard‐free single‐emissive‐layer white OLED is realized using an anti‐quenching multiple‐resonance TADF emitter, BNCT. By integrating a sterically protected MR core with efficient energy transfer capability, BNCT enables warm‐white emission with high efficiency, negligible hazardous blue photons, and a simplified device architecture for next ...
Xiao‐Long Liu +9 more
wiley +1 more source
Journal of Heterocyclic Chemistry, 1973 AbstractThe treatment of 3β‐hydroxy‐16α‐bromo‐5α‐androstan‐17‐one, 3β‐acetoxy‐16α‐bromo‐5‐androsten‐17‐one and 21‐bromo‐5‐pregnen‐3β‐ol‐20‐one with 4,5‐dimethyl‐o‐phenylenediamine gave substituted quinoxalines.Hydrolysis of 3β‐acetoxy‐5‐androsteno[16,17‐b]‐6′,7′‐dimethylquinoxaline produced the corresponding 3β‐hydroxy compound.
openaire +2 more sources
FlexMat, EarlyView.Two exciplex emitters are constructed based on a host‐guest doping strategy, and their exciton dynamics processes are investigated in depth. High‐performance OLEDs are fabricated by employing these exciplexes as emitters or sensitizers, providing excellent electroluminescence efficiencies and low efficiency roll‐offs.
Jingwen Xu +4 more
wiley +1 more source