Kinetic Studies of Chlorine Exchange between Benzyl Chloride and Radioactive Chloride Ion

Benzyl Chloride의 Chlorine 交換反應

  • Park, Yong-Ja (Chemistry Division, Atomic Energy Research Institute) ;
  • Lee, Ik-Choon (Chemistry Division, Atomic Energy Research Institute)
  • 박용자 (原子力硏究所 化學硏究室) ;
  • 이익춘 (原子力硏究所 化學硏究室)
  • Published : 19650300


Halogen exchanges between benzyl chloride and chloride ion have been studied in 90% ethanol-water mixture, and activation parameters in the exchange reaction have been determined; ${\Delta}H^{\neq}$ = 18. 50 Kcal and ${\Delta}S^{\neq}$ = -22. 09 e. u. Results indicated that the reaction proceeded via a typical bimolecular mechanism. The importance of nucleophilic ability of attacking anion in $S_N2$ process has been stressed giving some experimental evidence. The order of reactivity of halides in the exchange reaction is better explained with the Swain's nucleophilic parameter than with the bond dissociation energies.



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