• 제목/요약/키워드: p-Mentha-8-ene-2-one derivatives

검색결과 1건 처리시간 0.015초

p-Mentha-8-ene-2-one계 향료합성 (Synthesis of Odorants p-Mentha-8-ene-2-one Derivatives by the Reaction of Dihydrocarvone with Formaldehyde)

  • 유충규;송기춘
    • 약학회지
    • /
    • 제35권4호
    • /
    • pp.335-340
    • /
    • 1991
  • The synthetic product of 1-hydroxymethyl-p-mentha-8-ene-2-one was afforded by the reaction between dihydrocarvone and formaldehyde. This reaction involves the aldol condensation. The preferential position of formaldehyde is methyl substituted .alpha.-carbon atom where these enols are regiospecifically formed. The hydroxymethylation of dihydrocarvone was also proved to happen regiospecifically in the position of .alpha.-methyl substituted ketone. When 1-hydroxymethyl-p-mentha-8-ene-2-one reacted with LiAIH$_{4}$, 1-hydroxymethyl-p-mentha-8-ene-2$\beta$-ol obtained. 1-Hydroxymethyl-p-mentha-8-ene-2-one reacted with PDC and chromic acid to give 1-formyl-p-mentha-8-ene-2-one and 1-carboxy-p-mentha-8-ene-2-one. When the hydroxymethyl group of 1-hydroxymethyl-p-menta-8-ene-2-one was reducted to methyl group, 1-methyl-p-menta-8-ene-2-one was obtained. Some of these new compound have certain odor. I, II have woody aroma and IV, V have camphory odors. IX has flowery minty odor.

  • PDF