Hydrochloric Acid → 5-(4-p-Tolyl-piperazin-1-ylmethyl)-pyrimidine-2,4-diamine dihydrochloride

HRID 2294037Notes

Reaction equation

HRID 2294037 reaction equation
[C:1]1([CH3:22])[CH:6]=[CH:5][C:4]([N:7]2[CH2:12][CH2:11][N:10]([CH2:13][C:14]3[C:15]([NH2:21])=[N:16][C:17]([NH2:20])=[N:18][CH:19]=3)[CH2:9][CH2:8]2)=[CH:3][CH:2]=1.[ClH:23]>CO>[ClH:23].[ClH:23].[C:1]1([CH3:22])[CH:2]=[CH:3][C:4]([N:7]2[CH2:8][CH2:9][N:10]([CH2:13][C:14]3[C:15]([NH2:21])=[N:16][C:17]([NH2:20])=[N:18][CH:19]=3)[CH2:11][CH2:12]2)=[CH:5][CH:6]=1

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 214736335-(4-p-Tolyl-piperazin-1-ylmethyl)-pyrimidine-2,4-diamine

Product 1

HCID 214736325-(4-p-Tolyl-piperazin-1-ylmethyl)-pyrimidine-2,4-diamine dihydrochlorideYield 77%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

0.23 g (0.00077 mol) of 5-(4-p-tolyl-piperazin-1-ylmethyl)-pyrimidine-2,4-diamine was dissolved in 220 ml of hot methanol. The solution was treated at room temperature with 0.44 ml (0.00154 mol) of 3.5N ethanolic hydrochloric acid. The solution was completely freed from the solvents and the residue was recrystallized from ethanol/diethyl ether. 0.22 g (77%) of 5-(4-p-tolyl-piperazin-1-ylmethyl)-pyrimidine-2,4-diamine dihydrochloride was obtained as whited crystals; m.p. 220°-222°.

Workup

  1. customthe residue was recrystallized from ethanol/diethyl ether

Sources & evidence

ORD record
ord-60f3192f14224afc936563c5caeac9ae
Source dataset
uspto-grants-1997_11
Patent number
US05688798

Reaction notes

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