HCID 12906145, compound → HCID 12906147, compound

HRID 647053Notes

Reaction equation

HRID 647053 reaction equation
[OH:1][C:2]1[C:7]([CH3:8])=[C:6]([CH3:9])[CH:5]=[C:4]([CH3:10])[C:3]=1[CH:11](O)[CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][OH:17].[H][H]>C(O)(=O)C.[Pd]>[OH:1][C:2]1[C:7]([CH3:8])=[C:6]([CH3:9])[CH:5]=[C:4]([CH3:10])[C:3]=1[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][OH:17]

Participants

5

Reactant 2

HCID 12906145HCID 12906145, compoundHCID 178418361HCID 178418361, compound2×

Product 1

HCID 12906147HCID 12906147, compound

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 176Acetic AcidSolvent

Procedure

A solution of 1-(2'-hydroxy-3',4',6'-trimethylphenyl)-1,6-hexanediol (formula III-3 wherein R=H3C, X=H, Y=OH, n=4, in the free form) (5.43 parts) in acetic acid (150 volume parts) was stirred with 5% palladium on carbon (4.79 parts) under a stream of hydrogen gas at room temperature until the uptake of hydrogen ceased. The catalyst was filtered off and the filtrate was concentrated in vacuo. The resulting residue was subjected to column chromatography on silica gel and eluted with chloroform-methanol (100:1). From the 1st fraction, 6-(2'-hydroxy-3',4',6'-trimethylphenyl)hexanol (formula III-2, wherein R=H3C, X=H, Y=OH, n=4, in the free form) (0.872 part) was obtained as colorless needles melting at 81°-82° C.

Workup

  1. filtrationThe catalyst was filtered off
  2. concentrationthe filtrate was concentrated in vacuo
  3. washeluted with chloroform-methanol (100:1)

Sources & evidence

ORD record
ord-010a05d9c5b647928b22eda4d41e8c4a
Source dataset
uspto-grants-1983_10
Patent number
US04407757

Reaction notes

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