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KMID : 1059519850290050465
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Journal of the Korean Chemical Society
1985 Volume.29 No. 5 p.465 ~ p.471
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Solvolysis of Anthraquinone-2-Carbonyl Chloride in Binary Solvent Mixtures
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Lee Jong-Pal
Sung Dae-Dong
Uhm Tae-Seop
Lee Ik-Choon
Lee Ik-Choon
Lee Ik-Choon
Sohn Se-Chul
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Abstract
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The rate constants for the solvolysis of anthraquinone-2-carbonyl chloride in binary solvent mixtures, methanol-acetonitrile, methanol-acetone, ethanol-acetonitrile and ethanol-acetone, have been studied by means of conductometry. Maximum rate phenomena were observed at the methanol mole fraction, XMeOH = 0.73∼0.81 for methanol-acetonitrile and at XMeOH = 0.83 for methanol-acetone mixtures. The Kivinen and Grunwald-Winstein plots indicated that the reaction proceeds via SN2 type mechanism. Application of Taft's solvatochromic correlation on the solvolysis rate revealed that both α and π* are important for reactions in methanol-acetonitrile and methanol-acetone mixtures, while only α influences significantly on the rate in ethanol-acetonitrile and ethanol-acetone mixtures.
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KEYWORD
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