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학술발표회초록보기

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제112회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Concerning the Reaction Channel for the Solvolyses of Benzoyl Chlorides

등록일
2013년 8월 16일 21시 13분 49초
접수번호
0058
발표코드
PHYS.P-263 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 16일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
고한중
전주교육대학교 과학교육과, Korea
The ortho-effect of substituents upon the kinetics of reactions taking place at a reaction center attached to an aromatic ring has long been a topic of interest. For benzoyl chloride solvolyses, it was shown by Bentley and co-workers that the 2,6-dimethyl-derivative followed an ionization pathway with characteristics very similar to those for the solvolyses of p-methoxybenzoyl chloride. We have carried out a Grunwald-Winstein equation treatment of the solvolyses of 2,6-dichlorobenzoyl chloride, with similar size chlorines replacing the methyl groups but now with an overall electron-withdrawing influence of the ortho-substituents. In this way the reactivity is moderated and the study can be extended to the important fluoroalcohol-contaning solvents. For the 30 solvents studied, an ionization pathway with a moderate nucleophilic solvation component is indicated. For comparison purposes, the treatment has also been applied to the 2,4-, 3,4-, and 3,5-dichloro-derivatives. For the 2,4-dichloro-derivative, the two reaction channels are clearly visible and the solvents included for each channel are consistent with their solvent properties.

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