4-Propyl-1,2-benzenediol → 2H-1,5-Benzodioxepin-3(4H)-one, 7-propyl-

HRID 1603428Notes

Reaction equation

HRID 1603428 reaction equation
[CH2:1]([C:4]1[CH:5]=[C:6]([OH:11])[C:7]([OH:10])=[CH:8][CH:9]=1)[CH2:2][CH3:3]>[Cu]>[CH2:1]([C:4]1[CH:9]=[CH:8][C:7]2[O:10][CH2:6][C:7](=[O:10])[CH2:8][O:11][C:6]=2[CH:5]=1)[CH2:2][CH3:3]

Participants

3

Reactant 1

HCID 976384-Propyl-1,2-benzenediol

Product 1

HCID 222190972H-1,5-Benzodioxepin-3(4H)-one, 7-propyl-

Reagents, catalysts & solvents 1

HCID 23978CopperCatalyst

Procedure

This compound was prepared using known reactions, starting from 97% pure 4-propyl-1,2- benzenediol. This starting product, having an odor of the copper, phenolic, slightly fatty type, was converted in an analogous way to that described in U.S. Pat. No. 3,799,892 to give a crude product which, after purification and crystallization in heptane at -20° C., gave 7-propyl-2H,4H-1,5-benzodioxepin-3-one with a purity above 99%, showing the following spectral data:

Workup

  1. customThis compound was prepared
  2. custom3,799,892 to give a crude product which
  3. customafter purification and crystallization in heptane at -20° C.

Sources & evidence

ORD record
ord-57f852ff76d94fa1b35cb5031476745a
Source dataset
uspto-grants-1999_11
Patent number
US05990076

Reaction notes

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