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알릴리덴트리페닐포스포란 화학적 특성, 용도, 생산

• 용도

  Allylidenetriphenylphosphorane is used as a wittig reagent for 1,3-diene synthesis and Michael addition reaction.

• 제조 방법

  Allylidenetriphenylphosphorane is generally prepared from Allyltriphenylphosphonium Bromide or chloride by treatment with n-Butyllithium or Phenyllithium. Structurally related analogs have been prepared by the similar methods: 2-butenylidenetriphenylphosphorane; 3-methyl-2- butenylidenetriphenylphosphorane; (E)-2-octenylidenetriphenylphosphorane; (E)- pentadienylidenetriphenylphosphorane; (E)-2,4-hexadienylidenetriphenylphosphorane; 2- alkynylidenetriphenylphosphorane; allylidenetributylphosphorane. γ-Alkyl-substituted allylidenetriphenylphosphorane can be also obtained by the reaction of diisobutylaluminum alkylideneamide with methylidenetriphenylphosphorane.

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