Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Solvolysis of 3-Chloro-1,2-benzisothiazole-1,1-dioxide (pseudosaccharin chloride

3-Chloro-1,2-benzisothiazole-1,1-dioxide (pseudosaccharin chloride)의 가용매 분해반응

  • In-Sun Koo (Department of Science Education, Gyeongsang National University) ;
  • Jeong-Ja Kim (Department of Science Education, Gyeongsang National University) ;
  • Yong-Jin Yoon (Department of Chemistry, Gyengsang, National University) ;
  • Ikchoon Lee (Department of Chemistry Inha University)
  • 구인선 (경상대학교 사범대학 과학교육과) ;
  • 김정자 (경상대학교 사범대학 과학교육과) ;
  • 윤용진 (경상대학교 이과대학 화학과) ;
  • 이익춘 (인하대학교 이과대학 화학과)
  • Published : 1986.06.20
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Abstract

The pseudo-first order rate constants have been obtained for the solvolysis of pseudo-saccharinechloride in MeOH-$H_2O$, EtOH-$H_2O$, MeOH-MeCN and MeOH-$(Me)_2$CO solvents mixtures at various temperatures. Values of n and m in the Kivinen and Grunwald-Winstein plots, respectively, have been determined and the Taft's solvatochromic parameters were obtained; based on these solvent effect parameters as well as on the activation parameters it was concluded that reaction proceeds via an $S_N2$ mechanism.

MeOH-$H_2O$, EtOH-$H_2O$, MeOH-MeCN and MeOH-$(Me)_2$CO 혼합용매계에서 pseudo-saccharinechloride의 가용매분해반응에 대한 유사일차 반응속도상수를 여러 온도에서 구하였다. Kivinen식의 n값과 Grunwald-Winstein식의 m값을 구하고 분광용매화 관계식의 파라메타들을 결정하였다. 이들 용매효과 파라메타와 활성화 파라메타들을 종합하여 볼때 Pseudo saccharinechloride의 가용매 분해반응은 $S_N2$ 반응으로 진행됨을 알았다.

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References

  1. Am. Chem. v.1 I. Remsen;C. Fahlberg
  2. Acta. Chem. Scand v.19 A. Kivinen
  3. Progress in Physical Organic Chemistry v.13 M.J. Kamlet;J. L. Abboud;R.W. Taft(ed.)
  4. Ph. D.Thesis, Sung Kyun Kwan University Y.J. Yoon
  5. Phill. Mg. v.2 E.A. Guggenheim
  6. Tetrahedron Letters v.15 H. Hettler
  7. J. Am. Chem. Soc. v.78 A.H. Fainberg;S. Winstein
  8. J. Korean Chem. Soc. v.25 I. Lee;I-S. Koo
  9. J. Gyeongsang Nat. Univ. v.23 D.H. Kang;I-S. Koo
  10. J. Chem. Phys. v.61 M.A. Ccplan;R.M. Fuoss
  11. J. Chem. Phys. v.2 J.G. Kirkwood
  12. Ann. N. Y. Acad. Soc. v.39 J.K. Laidler;H. Eyring
  13. Facts from Figures M.J. Moroney
  14. J. Korean Chem. Soc v.28 I. Lee;S.M. La;B.S. Lee;S.C. Sohn