Reaction of Furfural Derivatives. Cannizzaro reaction of Furfural, 5-Bromo-and 5-Methylfurfural

Cyclitol 유도체합성을 위한 Furfural 유도체의 반응에 관한 연구. Furfural, 5-Bromo-및 5-Methylfurfural의 Cannizzaro 반응

  • 손주환 (인하대학교 공과대학 화학공학과) ;
  • 김용인 (홍익대학교 이공대학 화학공학과) ;
  • 남기대 (충북대학교 화학공학과)
  • Published : 1972.10.30

Abstract

We have obtained the results of Cannizzaro reaction of furfural, 5-methylfurfural and 5-bromofurfural by using alcoholic potassium hydroxide solution in 95% (V/V) methanol solvent at $0{\sim}40^{\circ}C$. The results are as follows: 1) Their Cannizzaro reaction is fourth-order reaction, and the reaction of furfural proceeds 3 times as rapid as that of 5-methylfurfural and 10 times as slow as that of 5-bromofurfural. 2) Their activation energies of furfural, 5-methylfurfural and 5-bromofurfural in the reaction are 10.46Kcal/mole, 16.27Kcal/mole, and 9.62Kcal/mole respectively, and the calculated activation parameters, and ${\Delta}S^{\neq}$, increase in the order of 5-bromofurfural, furfural and 5-methyl-furfural.

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