Pyrazine is a heterocyclic aromatic organic compound with the chemical formula C4H4N2. It is a symmetrical molecule with point group D2h. Pyrazine is less basic than pyridine, pyridazine and pyrimidine. 22047-25-2, formula is C6H6N2O, Name is Acetylpyrazine. It is a deliquescent crystal or wax-like solid with a pungent, sweet, corn-like, nutty odour. Application In Synthesis of 22047-25-2.
Wang, Sheng Fu;Yuan, Yi;Wei, Yu-Chen;Chan, Wei-Hsiang;Fu, Li-Wen;Su, Bo-Kang;Chen, I-Yun;Chou, Keh-Jiunh;Chen, Po-Ting;Hsu, Hsiu-Fu;Ko, Chang-Lun;Hung, Wen-Yi;Lee, Chun-Sing;Chou, Pi-Tai;Chi, Yun research published 《 Highly Efficient Near-Infrared Electroluminescence up to 800 nm Using Platinum(II) Phosphors》, the research content is summarized as follows. Near-IR organic light-emitting diodes (NIR OLEDs) enable many unique applications ranging from night-vision displays and photodynamic therapies. However, the development of efficient NIR OLEDs with a low efficiency roll-off is still challenging. Here, new heteroleptic Pt(II) complexes (1-4) flanked by both pyridyl pyrimidinate and functional azolate chelates are synthesized. The reduced ππ* energy gap of the pyridyl pyrimidinate chelate, and strong intermol. interaction and high crystallinity in vacuum-deposited thin films engender strong intermol. charge transfer transition including metal-metal-to-ligand charge transfer; thereby, exhibiting efficient photoluminescence within 776-832 nm and short radiative lifetimes of 0.52-0.79 μs. Consequently, nondoped NIR-emitting OLEDs based on these Pt(II) complexes are fabricated, to which Pt(II) complexes 2 and 4 give record high maximum external quantum efficiency of 10.61% at 794 nm and 9.58% at 803 nm, resp. Also, low efficiency roll-off is also observed, among which the device efficiencies of 2 and 4 are ≥4 times higher than that of the best NIR-emitting OLEDs recorded at c.d. of 100 mA cm-2.
Application In Synthesis of 22047-25-2, 2-Acetylpyrazine has been identified as one of the volatile flavor constituents in popcorn, wheat and rye bread crust.
2-Acetylpyrazine, also known as 1-pyrazinylethanone or fema 3126, belongs to the class of organic compounds known as aryl alkyl ketones. These are ketones have the generic structure RC(=O)R’, where R = aryl group and R’=alkyl group. 2-Acetylpyrazine exists as a solid, soluble (in water), and a very weakly acidic compound (based on its pKa). Within the cell, 2-acetylpyrazine is primarily located in the cytoplasm. 2-Acetylpyrazine has a bitter, bread crust, and chip taste.
2-acetylpyrazine is a pyrazine that is substituted by an acetyl group at position 2. It has been identified as one of the volatile flavor constituents in popcorn, bread crust, vinegar, and potato snacks. It has a role as a flavouring agent. It is an aromatic ketone and a member of pyrazines.
2-Acetylpyrazine is a nitrogen containing compound that has been used in biological studies. 2-Acetylpyrazine has been shown to have inhibitory properties against the growth of prostate cancer cells and other cell lines. It also inhibits the production of fatty acids and epidermal growth factor, which are important for cellular proliferation. The inhibition is due to the photochemical properties of 2-acetylpyrazine, which cause the formation of reactive species that react with biological molecules. The reactive species may be generated by either a reaction mechanism or a reaction pathway that involve coordination geometry. 2-acetylpyrazine has also been used as a fluorescence probe for fatty acid detection in lipid bilayers and liposomes., 22047-25-2.