Acetate-Promoted Aldol-Type Reaction: Scope and Reactivity of Acetates and Aldehydes

نویسندگان

  • Dong Hyeon Kim
  • A. F. M. Motiur Rahman
  • Byeong-Seon Jeong
  • Eung Seok Lee
  • Yurngdong Jahng
چکیده

Potential of acetates and related compounds in glacial acetic acid as a catalyst for aldol-type condensation reactions was examined. Reactions of cycloalkanones or selected heteroaromatics with aldehydes in presence of 10 mol% of various acetates in acetic acid afforded α,α'-bis(substituted-benzylidene)cycloalkanones and substituted-benzylidene-mackinazolinones, respectively, in good yields. Among the compounds tested, ammonium acetate is the best and effective especially towards the reactions of mackinazolinone and aliphatic aldehydes to afford 6-alkylidenemackinazolinones.

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تاریخ انتشار 2009