• 제목/요약/키워드: 2,3-Dicyanopyrazine

검색결과 7건 처리시간 0.017초

Spiropyran을 도입한 신규 2,3-dicyanopyrazine 유도체의 합성과 물성 (Synthesis and characteristics of 2,3-dicyanopyrazine derivatives substituted spiropyran)

  • Lee, Bum-Hoon;Jaung, Jae-Yun
    • 한국섬유공학회:학술대회논문집
    • /
    • 한국섬유공학회 2002년도 봄 학술발표회 논문집
    • /
    • pp.131-134
    • /
    • 2002

  • Pyrazines are known to exhibit a range of physiological activities. As we mentioned earlier, the importance of dicyanopyrazine derivatives lies mainly in the chemical industry and many other fields such as food, agricultural, medicinal chemistry because of their specific properties. And then, a large number of research papers have been published about the characteristics of dicyanopyrazine derivatives[1,2]. (omitted)

  • PDF

Syntheses and Thermal Properties of 5,10-Disubstituted-2,3,7,8-tetracyano-5,10-dihydrodipyrazino [2,3-b:2′,3′-el pyrazines and Polymeric Porphyrazines Derived from 2,3-Dichloro-5,6-dicyanopyrazine

  • Jaung, Jae-yun;Kim, Sung-Dong
    • Fibers and Polymers
    • /
    • 제1권2호
    • /
    • pp.71-75
    • /
    • 2000

  • Intermolecular cyclization of 2-alkylamino-3-chloro-5,6-dicyanopyrazine 2 in the presence of tributylamine in N,N-dimethylformamide (DMF) gave 5,10-disubstituted-2,3,7,8-tetracyano -5,10-dihydrodipyrazino〔2,3-b:2',3'-e]pyrazines 3, which showed strong mesomorphic property and were anticipated as new chromophoric system for functional dye materials. Absorption spectra, fluorescent properties and other physical properties were correlated with their chemical structures. Vanadyl oligomeric porphyrazine with long alkyl groups synthesized from 3 had satisfactory solubility in tetrahydrofuran (THF), diethyl ether and dimethylsulfoxide (DMSO). The syntheses and characterization of vanadyl polymeric porphyrazines derived from 3 with long alkyl groups are reported.

  • PDF

신규 2,3-dicyanopyrazine유도체의 합성과 특성 (Synthesis and characteristics of 2,3-dicyanopyrazine derivatives.)

  • Lee, Bum-Hoon;Jaung, Jae-Yun
    • 한국섬유공학회:학술대회논문집
    • /
    • 한국섬유공학회 2001년도 가을 학술발표회 논문집
    • /
    • pp.247-250
    • /
    • 2001

  • 2, 3-Dicyanopyrazine derivatives have been synthesized by condensation of diaminomaleonitrile(DAMN) and a -diketone compounds. Diaminomaleohitrile (DAMN) is well known as a tetramer of hydrogen cyanide and a useful compound in the chemical industry not on]y as a starting material for synthesis of various heterocyclic compounds but also as an intermediate for synthesis of glycine, adenine, guanine et al. (omitted)

  • PDF