6502-38-1Relevant academic research and scientific papers
Potassium Poly(Heptazine Imide): Transition Metal-Free Solid-State Triplet Sensitizer in Cascade Energy Transfer and [3+2]-cycloadditions
Antonietti, Markus,Guldi, Dirk M.,Hussain, Tanveer,Karton, Amir,Markushyna, Yevheniia,Mazzanti, Stefano,Oschatz, Martin,Sánchez Vadillo, José Manuel,Savateev, Aleksandr,Strauss, Volker,Tarakina, Nadezda V.,Tyutyunnik, Alexander P.,Walczak, Ralf,ten Brummelhuis, Katharina
, p. 15061 - 15068 (2020)
Polymeric carbon nitride materials have been used in numerous light-to-energy conversion applications ranging from photocatalysis to optoelectronics. For a new application and modelling, we first refined the crystal structure of potassium poly(heptazine imide) (K-PHI)—a benchmark carbon nitride material in photocatalysis—by means of X-ray powder diffraction and transmission electron microscopy. Using the crystal structure of K-PHI, periodic DFT calculations were performed to calculate the density-of-states (DOS) and localize intra band states (IBS). IBS were found to be responsible for the enhanced K-PHI absorption in the near IR region, to serve as electron traps, and to be useful in energy transfer reactions. Once excited with visible light, carbon nitrides, in addition to the direct recombination, can also undergo singlet–triplet intersystem crossing. We utilized the K-PHI centered triplet excited states to trigger a cascade of energy transfer reactions and, in turn, to sensitize, for example, singlet oxygen (1O2) as a starting point to synthesis up to 25 different N-rich heterocycles.
Chalcone oxime derivatives as new inhibitors corrosion of carbon steel in 1?M HCl solution
Thoume,Benmessaoud Left,Elmakssoudi,Benhiba,Zarrouk,Benzbiria,Warad,Dakir,Azzi,Zertoubi
, (2021)
In this research, 1,3-diphenylprop-2-en-1-one oxime (CO) and 4-nitrophenyl-1-phenylprop-2-en-1-one(CO-NO2) was synthesized and its adsorption properties and corrosion inhibition ability was evaluated for carbon steel (CS) in 1 M HCl at 293–323
Method for synthesizing nicotinoyl imine amide derivatives by one-pot method
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Paragraph 0043-0045, (2019/12/02)
The invention discloses a method for synthesizing nicotinoyl imine amide derivatives by a one-pot method in the field of organic chemical synthesis. According to the synthesis method, a copper compound is used as a catalyst, and in the presence of ligands
Derivative of nicotinamide and catalytic synthesis method of derivative
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Paragraph 0034-0066, (2019/10/01)
The invention provides a derivative of nicotinamide and a catalytic synthesis method of the derivative. The derivative is 2-methyl-4,6-diphenyl-N-p-toluenesulfonyl nicotinamide, and the structure is shown in a formula (I); the catalytic synthesis method o
Synthesis of N-Aryl Oxindole Nitrones through a Metal-Free Selective N-Arylation Process
Wu, Si-Yi,Ma, Xiao-Pan,Liang, Cui,Mo, Dong-Liang
, p. 3232 - 3238 (2017/03/23)
An efficient selective N-arylation of 3-(hydroxyimino)indolin-2-ones with diaryliodonium salts to prepare (Z)-N-aryl oxindole nitrones has been achieved under simple base-mediated conditions. The reaction tolerated a variety of diaryliodonium salts with diverse and sensitive functional groups. Studies on the oxime structures revealed that the pyrroline ring and carbonyl group in 3-(hydroxyimino)indolin-2-ones played important roles in the selective N-arylation process. The N-aryl oxindole nitrones could be prepared rapidly and easily at the gram scale.
O-iodoxy benzoic acid–mediated synthesis of 3,5-diarylisoxazoles and isoxazole-3-carboxylic acids
Desai, Vidya G.,Naik, Sneha R.,Dhumaskar, Kashinath L.
, p. 1453 - 1460 (2016/09/23)
A new, convenient, ecofriendly synthesis of 3,5-diarylisoxazoles is reported from a,b-unsaturated ketoximes. Similarly, a novel synthesis of isoxazole carboxylic acids is also reported. Both the methods use efficient, environmentally friendly, and nontoxic iodoxybenzoic acid (IBX) as an oxidative cyclizing reagent. Easy procedure, environmentally benign reaction conditions, and nontoxicity are advantages to the methodology.
