24294-82-4Relevant academic research and scientific papers
Diarylpyrazine-based position isomers: A detailed study of optical properties and structure-property relationship
Gong, Young-Dae,Meti, Puttavva,Park, Dong-Jin
, (2020/02/11)
A versatile and expeditious synthetic route to pyrazine-based symmetric and asymmetric chromophores decorated with donor-acceptor (D-A) has been designed to study their structural effects on optical properties. Suzuki-Miyaura coupling of dihalopyrazine wi
The reaction of α-halocarbonyl compounds with (NH4)OH, (NH4)So4 or NH4CI solution under microwave-irradiation
Utsukihara, Takamitsu,Koshimura, Masahiro,Kitsuta, Kazunori,Sato, Akinori,Matsushita, Masatoshi,Takahashi, T. Tomoyoshi,Horiuchi, C. Akira
, p. 1495 - 1502 (2017/11/10)
Reaction of α-halo ketone (a-bromo ketone) under microwave, irradiation gives the pyrazine and quinoxaline derivative in good yields. This reaction affords a clean and convenient synthetic method for pyrazine and quinoxaline derivatives.
Highly efficient synthesis of 2,5-disubstituted pyrazines from (Z)-β-haloenol acetates
Chen, Zhengwang,Ye, Dongnai,Xu, Guohai,Ye, Min,Liu, Liangxian
supporting information, p. 6699 - 6702 (2013/10/01)
A highly efficient synthesis of a wide range of 2,5-disubstituted pyrazines from (Z)-β-haloenol acetates is described. The reactions are conducted under convenient conditions and provide products with excellent regioselectivity in moderate to excellent yields with a broad substrate scope, including a variety of aromatic and aliphatic haloenol acetates.
Microwave-assisted synthesis of α-hydroxy ketone and α-diketone and pyrazine derivatives from α-halo and α,α′-dibromo ketone
Utsukihara, Takamitsu,Nakamura, Hiroaki,Watanabe, Masashige,Akira Horiuchi
, p. 9359 - 9364 (2008/01/27)
A novel reaction of α-halo ketone (α-bromo and α-chloro ketone) with irradiation under microwave gave the corresponding α-hydroxyketone and pyrazine derivative in good yields. In the case of α,α′-dibromo ketone, α-diketone was obtained. This reaction affords a new, clean and convenient synthetic method for α-hydroxyketone, α-diketone, α-chloro ketone and pyrazine derivative.
Syntheses and Photophysical Properties of Some 5(2)-Aryl-2(5)-(4-pyridyl)oxazoles and Related Oxadiazoles and Furans
Hall, J. Herbert,Chien, Joseph Yuming,Kauffman, Joel M.,Litak, Peter T.,Adams, Jeffrey K.,et al.
, p. 1245 - 1273 (2007/10/02)
A number of 5-aryl-2-(4-pyridyl)oxazoles, a 2-aryl-5-(4-pyridyl)oxazole, the related oxadiazole and furan, several 2-(4-pyridyl)cycloalkanooxazoles, and many of their quaternary salts were prepared.No single standard synthesis was effective for preparation of more than a few of the 25 free bases described; methods often unique to a base were employed.Minor variations in structure sometimes produced large differences in absorption and emission wavelengths, as well as in the magnitude of the extinction coefficient.The salts are of interest as laser dyes, scintillation fluors, biological stains, and shifters for luminescent solar concentrators.
