Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Photochemical Reduction of trans-1,2-Bispyrazylethylene

트란스-1,2-비스피라질에틸렌의 광화학적 환원

  • Sang Chul Shim (Department of Chemical Science, The Korea Advanced Institute of Science) ;
  • Jeong Seok Chae (Department of Chemical Science, The Korea Advanced Institute of Science)
  • 심상철 (한국과학기술원 화학 및 화학공학과) ;
  • 채정석 (한국과학기술원 화학 및 화학공학과)
  • Published : 1977.04.30
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Abstract

Photochemical reduction of 1,2-bispyrazylethylene,a stilbene like heterocompound, was studied in hydrogen donating solvents and reduction product, 1, 2-bispyrazylethane, was identified. Salt and solvent effects on the quantum yields of the reduction, sensitization and quenching studies showed that the reactive state for the photochemical reduction of the compound is $(n,{\pi}^*)^1$ state rather than $({\pi},{\pi}^*)^1$ state.

질소를 방향족고리에 포함하고 있는 헤테로 화합물인 트란스-1,2-비스피라질 에틸렌을 쿠멘, 이소프로판올, 시멘용매등에 녹여 빛을 쪼여준 결과 광화학적 환원이 일어나 1,2-비스피라질 에탄이 됨을 알았다. 알칼리 금속염이 이 환원반응에 미치는 영향, 용매효과, 증감제와 아줄렌등의 영향으로 부터 이 환원 반응은 $(n,{\pi}^*)^1$상태로부터 일어남을 알았다.

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