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106-23-0

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Citronellal is still isolated from essential oils in considerable quantities; it is also produced synthetically.<br/> 1) Isolation from essential oils:(+)-Citronellal is obtained from citronella oils by fractional distillation. Racemic citronellal is isolated from E. citriodora oil; when necessary, it is purified by using an addition compound, for example, the bisulfite derivative.<br/> 2) Synthesis from geraniol or nerol: Racemic citronellal can be obtained by vaporphase rearrangement of geraniol or nerol in the presence of, for example, a barium-containing copper–chromium oxide catalyst.<br/> 3) Synthesis from citronellol: Racemic citronellal can also be obtained by dehydrogenation of citronellol under reduced pressure with a copper chromite catalyst.<br/> 4) Synthesis from citral: Selective hydrogenation of citral to citronellal can be accomplished in the presence of a palladium catalyst in an alkaline alcoholic reaction medium. A continuously operating process for the hydrogenation on a palladium catalyst in the presence of trimethylamine has been developed.<br/> 5) Synthesis from myrcene: (+)- and (?)-Citronellal are available from myrcene via geranyldiethylamine, which is enantioselectively isomerized to (+)- or (?)-citronellalenamine. Hydrolysis yields pure (+)- or (?)-citronellal; see monograph menthol.
Lastest Price from Citronellal manufacturers
  • Citronellal
  • US $0.00 /ml
  • CAS:106-23-0
  • Min. Order: 0.1ml
  • Purity: GC≥98%
  • Supply Ability: 500 ml
  • 2020-05-26
  • Citronellal
  • US $0.00-0.00/Kg
  • CAS: 106-23-0
  • Min. Order: 100G
  • Purity: 99.0%+
  • Supply Ability: 100 tons
  • 2020-02-26

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