Peracetic Acid → HCID 66618079, compound

HRID 2090167Notes

Reaction equation

HRID 2090167 reaction equation
[CH3:1][C:2]1[N:3]([CH2:15][CH:16]([CH3:18])[CH3:17])[C:4]2[C:13]3[N:12]=[CH:11][CH:10]=[CH:9][C:8]=3[N:7]=[CH:6][C:5]=2[N:14]=1.C(OO)(=[O:21])C>>[CH3:1][C:2]1[N:3]([CH2:15][CH:16]([CH3:18])[CH3:17])[C:4]2[C:13]3[N:12]=[CH:11][CH:10]=[CH:9][C:8]=3[N+:7]([O-:21])=[CH:6][C:5]=2[N:14]=1

Participants

3

Reactant 2

HCID 6585Peracetic Acid2×HCID 221726862-Methyl-1-(2-methylpropyl)-1H-imidazo[4,5-c][1,5]naphthyridine3×

Product 1

HCID 66618079HCID 66618079, compound

Procedure

In one aspect, the invention provides a method for making 2-methyl-1-(2-methylpropyl)-5-oxido-1H-imidazo[4,5-c][1,5]naphthyridine. The method includes: providing N4-(2-methylpropyl)-3-nitro[1,5]naphthyridin-4-amine in a carrier including toluene; combining the N4-(2-methylpropyl)-3-nitro[1,5]naphthyridin-4-amine in the carrier with a hydrogenation catalyst and isopropanol to form a mixture; subjecting the mixture that includes the N4-(2-methylpropyl)-3-nitro[1,5]naphthyridin-4-amine and the hydrogenation catalyst to a hydrogen atmosphere under conditions effective to form N4-(2-methylpropyl)[1,5]naphthyridine-3,4-diamine; removing at least a portion of the hydrogenation catalyst from the N4-(2-methylpropyl)[1,5]naphthyridine-3,4-diamine; removing at least a portion of the isopropanol from the mixture of N4-(2-methylpropyl)[1,5]naphthyridine-3,4-diamine in a carrier that includes toluene and isopropanol; heating the N4-(2-methylpropyl)[1,5]naphthyridine-3,4-diamine in the carrier to a temperature of 20° C. to 55° C.; combining the N4-(2-methylpropyl)[1,5]naphthyridine-3,4-diamine in the carrier with p-toluenesulfonic acid to form a mixture; combining the mixture that includes the N4-(2-methylpropyl)[1,5]naphthyridine-3,4-diamine and p-toluenesulfonic acid with a trialkyl orthoacetate at a temperature of 70° C. to 100° C.; maintaining the temperature at 70° C. to 100° C. for a period of time sufficient to form 2-methyl-1-(2-methylpropyl)-1H-imidazo[4,5-c][1,5]naphthyridine; cooling the mixture that includes 2-methyl-1-(2-methylpropyl)-1H-imidazo[4,5-c][1,5]naphthyridine to a temperature of 45° C. to 55° C.; combining the 2-methyl-1-(2-methylpropyl)-1H-imidazo[4,5-c][1,5]naphthyridine in the carrier with an oxidizing agent including peracetic acid to form a mixture; maintaining the mixture that includes the 2-methyl-1-(2-methylpropyl)-1H-imidazo[4,5-c][1,5]naphthyridine and peracetic acid at a temperature of 45° C. to 55° C. for a time sufficient to form 2-methyl-1-(2-methylpropyl)-5-oxido-1H-imidazo[4,5-c][1,5]naphthyridine; and isolating at least a portion of the 2-methyl-1-(2-methylpropyl)-5-oxido-1H-imidazo[4,5-c][1,5]naphthyridine.

Workup

  1. temperaturecooling the mixture that
  2. customto a temperature of 45° C. to 55° C.
  3. customto form a mixture
  4. temperaturemaintaining the mixture that
  5. customat a temperature of 45° C. to 55° C.

Sources & evidence

ORD record
ord-ba647eab964d45c3842c2371a9f0e05e
Source dataset
uspto-grants-2013_05
Patent number
US08436176B2

Reaction notes

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