Perchloric Acid → HCID 13151607, compound

HRID 986474Notes

Reaction equation

HRID 986474 reaction equation
Cl(O)(=O)(=O)=O.[CH2:6]([N:10]1[C:19](=[O:20])[C:18]2[N:17]([CH2:21][CH2:22][CH:23]3[O:25][CH2:24]3)[CH:16]=[N:15][C:14]=2[N:13]([CH2:26][CH2:27][CH2:28][CH3:29])[C:11]1=[O:12])[CH2:7][CH2:8][CH3:9].C(=O)(O)[O-:31].[Na+]>COCCOC.O>[CH2:6]([N:10]1[C:19](=[O:20])[C:18]2[N:17]([CH2:21][CH2:22][CH:23]([OH:31])[CH2:24][OH:25])[CH:16]=[N:15][C:14]=2[N:13]([CH2:26][CH2:27][CH2:28][CH3:29])[C:11]1=[O:12])[CH2:7][CH2:8][CH3:9]

Participants

5

Procedure

0.4 ml of perchloric acid (70% strength) was added dropwise with stirring in 5 minutes to a solution of 7 g of 1,3-dibutyl-7-(3,4-epoxybutyl)xanthine in 300 ml of a mixture of ethylene glycol dimethyl ether/water (volume ratio 3:2) at room temperature. After stirring at room temperature for 45 hours, the mixture was neutralized with sodium bicarbonate and the solution was evaporated. The residue was taken up with methylene chloride and purified by column chromatography on silica gel with a mixture of chloroform and ethanol (volume ratio 8:2) as the mobile phase and by recrystallization from methylene chloride/petroleum ether.

Workup

  1. customthe solution was evaporated
  2. custompurified by column chromatography on silica gel with a mixture of chloroform and ethanol (volume ratio 8:2) as the mobile phase and by recrystallization from methylene chloride/petroleum ether

Sources & evidence

ORD record
ord-64e51e812ddb48b1a6722a3d3fedb94c
Source dataset
uspto-grants-1987_12
Patent number
US04713455

Reaction notes

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