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Volumn 129, Issue 28, 2007, Pages 8716-8723

One-electron reduction of methanesulfonyl chloride. The fate of MeSO 2CI•- and MeSO2• intermediates in oxygenated solutions and their role in the cis-trans isomerization of mono-unsaturated fatty acids

Author keywords

[No Author keywords available]

Indexed keywords

METHANESULFONYL CHLORIDE; SULFONYL RADICALS; SUPEROXIDES;

EID: 34548379572     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja070626q     Document Type: Article
Times cited : (27)

References (52)
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    • Asmus, K.-D.; M. Bonifačić, M. In S-Centered Radicals; Alfassi, Z. B.. Ed.; Wiley: Chichester, U.K. 1999; pp 141-191.
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    • Alfassi, Z. B, Ed, Wiley: Chichester, U.K
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    • (1999) S-Centered Radicals , pp. 289-309
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    • Chatgilialoglu, C. In The Chemistry of Sulfones and Sulfoxides; Patai, S., Rappoport, Z., Stirling, C. J. M., Eds.; Wiley: Chichester, U.K. 1988; pp 1089-1113.
    • (1988) The Chemistry of Sulfones and Sulfoxides , pp. 1089-1113
    • Chatgilialoglu, C.1
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    • 0001060282 scopus 로고    scopus 로고
    • Renaud, P, Sibi, M, Eds, Wiley-VCH: Weinheim, Germany
    • Bertrand, M. P.; Ferreri, C. In Radical in Organic Synthesis; Renaud, P., Sibi, M., Eds.; Wiley-VCH: Weinheim, Germany, 2001; Vol. 2, pp 485-503.
    • (2001) Radical in Organic Synthesis , vol.2 , pp. 485-503
    • Bertrand, M.P.1    Ferreri, C.2
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    • 2Cl is observed at longer time-scale. Detailed studies of a variety of α-hydroxyalkyl radicals with few sulfonyl chlorides are under investigation and will be published elsewhere. (Bobrowski, K.; Chatgilialoglu, C.; Tamba, M., et al. Unpublished results.)
    • 2Cl is observed at longer time-scale. Detailed studies of a variety of α-hydroxyalkyl radicals with few sulfonyl chlorides are under investigation and will be published elsewhere. (Bobrowski, K.; Chatgilialoglu, C.; Tamba, M., et al. Unpublished results.)
  • 37
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    • An equilibrium may also be reflected in the incomplete decay of the absorption at 320 nm, which seems to remain at a finite level of about 15% of initial absorption (see Figure 5e, If all of this was due to the equilibrium concentration of MeSO2•, K13 and k-13, could be evaluated more explicitly. However, because of other possible long-lived absorptions sulfonyl peroxyl, final products, the values thus derived should again only be regarded as limiting values, that is, K13 > 2.4 × 104 M-1 and k-13 < 4.6 × 104 s-1
    • -1.
  • 41
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    • 2Cl/PNAP system. Unambiguous proof of this reasonable assumption was, however, not anticipated in this study.
    • 2Cl/PNAP system. Unambiguous proof of this reasonable assumption was, however, not anticipated in this study.
  • 43
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    • -1 at 25 °C in organic solvents. See: Chatgilialoglu, C. J. Org. Chem. 1986, 51, 2871.
    • -1 at 25 °C in organic solvents. See: Chatgilialoglu, C. J. Org. Chem. 1986, 51, 2871.
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    • The rate constants of the same reaction in water could be larger, because of the polar contributions that stabilize the transition state
    • Horowitz, A. Int. J. Chem. Kinet. 1976, 8, 709. The rate constants of the same reaction in water could be larger, because of the polar contributions that stabilize the transition state.
    • (1976) Int. J. Chem. Kinet , vol.8 , pp. 709
    • Horowitz, A.1
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    • -1 seems reasonable.
    • -1 seems reasonable.
  • 47
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    • It is worth also recalling that the equilibrated cis/trans mixtures are similar to those reported for the isomerization of unsaturated fatty acid methyl esters by thiyl radicals, see: Chatgilialoglu, C, Ferreri, C, Mulazzani, Q. G, Ballestri, M, Landi, L. J. Am. Chem. Soc. 2000, 122, 4593
    • It is worth also recalling that the equilibrated cis/trans mixtures are similar to those reported for the isomerization of unsaturated fatty acid methyl esters by thiyl radicals, see: Chatgilialoglu, C.; Ferreri, C.; Mulazzani, Q. G.; Ballestri, M.; Landi, L. J. Am. Chem. Soc. 2000, 122, 4593.
  • 51
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    • It is worth mentioning that the thiyl radical-catalysed isomerization process does not suffer from the presence of oxygen,31 thus indicating that the equilibrium reaction of thiyl radical by oxygen is shifted to the left see introduction
    • 31 thus indicating that the equilibrium reaction of thiyl radical by oxygen is shifted to the left (see introduction).


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