Synthesis of (S)-(+)-2-Methyl-4-octanol: Male-Specific Compound Released by Sugarcane Weevil Sphenophorus levis (Coleoptera: Curculionidae)

نویسندگان

  • Paulo H. G. Zarbin
  • Jefferson L. Princival
  • Alcindo A. dos Santos
  • Alfredo R. M. de Oliveira
چکیده

O composto (S)-2-metil-4-octanol (1) é produzido especificamente pelos machos da broca da cana-de-açúcar Sphenophorus levis, e sua atividade biológica está aparentemente associada ao comportamento de agregação da espécie. Desenvolveu-se neste trabalho uma nova metodologia sintética para a preparação deste composto, utilizando-se o D-manitol (2) como material de partida, tendo-se o (R)-gliceraldeído acetonídeo (4) como intermediário chave. Através de análises cromatográficas de um acetil derivado do produto final, empregando-se colunas quirais, estabeleceuse um excesso enantiomérico de 99,5%. O composto (1) já foi previamente identificado como componente do feromônio de agregação de uma grande variedade de espécies de curculionídeos.

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تاریخ انتشار 2004