HCID 86736668, compound → HCID 12960829, compound

HRID 1156438Notes

Reaction equation

HRID 1156438 reaction equation
[F:1]/[C:2](/[C:5](/[CH3:19])=[CH:6]/[CH2:7][C:8]1[C:13]([Cl:14])=[CH:12][C:11]([O:15][CH3:16])=[C:10]([CH3:17])[C:9]=1[Cl:18])=[CH:3]\[OH:4]>CCOCC.[O-2].[O-2].[Mn+4]>[F:1]/[C:2](=[C:5](/[CH3:19])\[CH:6]=[CH:7]\[C:8]1[C:13]([Cl:14])=[CH:12][C:11]([O:15][CH3:16])=[C:10]([CH3:17])[C:9]=1[Cl:18])/[CH:3]=[O:4]

Participants

4

Reactant 1

HCID 86736668HCID 86736668, compound

Product 1

HCID 12960829HCID 12960829, compoundYield 95%

Reagents, catalysts & solvents 2

HCID 178418406HCID 178418406, compoundCatalystHCID 3283Diethyl EtherSolvent2×

Procedure

A solution of 5.6 g. (18.4 mmol) of 2Z,4E-2-fluoro-3-methyl-5-(2,6-dichloro-3-methyl-4-methoxyphenyl)pentadien-1-ol in ether was added to a stirred suspension of 24 g. of activated manganese dioxide in ether. After 14 hours, thin layer chromatography indicated that all of the alcohol had reacted. The mixture was filtered through Celite. The filtrate was concentrated and the residue was chromatographed on silica gel to give 5.4 g. (95% yield) of 2Z,4E-2-fluoro-3-methyl-5-(2,6-dichloro-3-methyl-4-methoxyphenyl)pentadien-1-al.

Workup

  1. customhad reacted
  2. filtrationThe mixture was filtered through Celite
  3. concentrationThe filtrate was concentrated
  4. customthe residue was chromatographed on silica gel
  5. customto give 5.4 g

Sources & evidence

ORD record
ord-b900e09cbbe448f1ad38b74bbee85f8a
Source dataset
uspto-grants-1982_06
Patent number
US04335248

Reaction notes

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