Perchloric Acid → HCID 20442864, compound

HRID 2296523Notes

Reaction equation

HRID 2296523 reaction equation
[CH2:1]([O:3][C:4]1[C:5](=[O:16])[C:6]([O:13][CH2:14][CH3:15])=[CH:7][C:8](OC)([CH3:10])[CH:9]=1)[CH3:2].Cl(O)(=O)(=O)=O>>[CH2:1]([O:3][C:4]1[C:5](=[O:16])[C:6]([O:13][CH2:14][CH3:15])=[CH:7][C:8](=[CH2:10])[CH:9]=1)[CH3:2]

Participants

3

Reactant 2

HCID 24247Perchloric AcidHCID 20442872HCID 20442872, compound

Product 1

HCID 20442864HCID 20442864, compoundYield 90.2%

Procedure

The same procedure as in Example 6 was repeated by using 226 mg of 2,6-diethoxy-4-methoxy-4-methyl-2,5-cyclohexadienone and 10 mg of perchloric acid, recovering 180 mg of an oily crude product. The crude product was purified by silica gel column chromatography using a 20:1 benzene-ethyl acetate mixture, giving 175 mg of 2,6-diethoxy-4-methylidene-2,5-cyclohexadienone in 90% of theoretical yield. The compound thus obtained was identified by NMR.

Workup

  1. customrecovering 180 mg of an oily crude product
  2. customThe crude product was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-c6c33ea7319f4e9eb0f0b3083636e227
Source dataset
uspto-grants-1984_01
Patent number
US04429164

Reaction notes

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