Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Quantum Mechanical Studies of the Structures and Reactions of oxiranes

Oxiranes의 구조와 반응에 관한 양자역학적 연구

  • Shi Choon Kim (Department of Chemistry, College of Natural Science, Hanyang University)
  • 김시준 (한양대학교 자연과학대학 화학과)
  • Published : 1986.04.20
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Abstract

The electronic structures and geometries of model substituted oxiranes, and carbonyl ylides containing cyano, methoxy and thiomethoxy substituents were investigated by MNDO-SCF-MO method. Stabilization and geometries caused by substituents, the ease of formation of carbonyl ylides from oxiranes and the reactivities of the cycloaddition of substituted carbonyl ylides were investigated.

치환 Oxiranes의 C-C결합 절단에 의한 알켄의 고리첨가 반응의 반응성을 규명하기 위하여 치환기 -CN, $-OCH_3,\;-SCH_3$에 대하여 (1) 치환기가 C-C고리열림 반응에 어떤 영향을 미치고 있는지 (2)치환기가 전이상태와 중간체의 구조에 어떤 영향을 미치고 있는지 (3)carbonyl yildes의 이성화장벽에 어떤 기여를 하고 있는지 (4)고리첨가 반응의 반응성에 치환기가 어떤 효과를 미치는지를 MNDO-SCF-MO법 계산에 의하여 연구하였다. 본 연구에서는 모든 분자의 기하학적 구조를 optimize하였으며 반응경로, 전이상태, 중간체의 계산을 실시하여 반응성과 치환기 효과를 논하였다.

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