Chinese Journal of Applied Chemistry ›› 1988, Vol. 0 ›› Issue (6): 70-71.

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STUDY ON PHASE TRANSFER CATALYTIC WITTIG REACTION

Xu Hansheng, Deng Yanneng, Li Handong   

  1. Department of Chemistry, Wuhan University
  • Received:1987-12-17 Revised:1988-03-19 Published:1988-12-10 Online:1988-12-10

Abstract: This paper describes the PTC Wittig reaction of ω-hydroxyl alkanyl triphenyl phosphoniurn bromide (Ph3P+ (CH)2OHBr,n=10,11) and aliphatic aldehydes(n-hexanal,n-pcntanal) with different solvents and bases. The optimum reaction conditions which can give high yield (80%) and good isomer ratio (Z:E=90:10)are reported. The method appeared convcnient for synthesizing insect sex pheromones.

Key words: Phase transfer catalysis, Wittig reaction, Insect sex pheromones