2-Amino-4,6-dimethyl pyrimidine → HCID 178425977, compound

HRID 1094032

Reaction equation

[CH3:1][C:2]1[CH:7]=[C:6]([CH3:8])[N:5]=[C:4]([NH2:9])[N:3]=1.[NH2:10]O.[CH3:12][C:13]1[CH:18]=[C:17]([CH3:19])[CH:16]=[C:15]([CH3:20])[C:14]=1[S:21]([O-:24])(=[O:23])=[O:22]>C(Cl)Cl>[CH3:20][C:15]1[CH:16]=[C:17]([CH3:19])[CH:18]=[C:13]([CH3:12])[C:14]=1[S:21]([O-:24])(=[O:23])=[O:22].[NH2:10][N:3]1[C:2]([CH3:1])=[CH:7][C:6]([CH3:8])=[N:5][C:4]1=[NH2+:9]

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of 4,6-Dimethyl-pyrimidin-2-ylamine (25 g, 200 mmol) in 400 mL of CH2Cl2 was added dropwise a solution of hydroxylamine-2,4,6-Trimethyl-benzenesulfonate (105 g, 488 mmol) in 300 mL of CH2Cl2 at 0° C., and the mixture was stirred at 0° C. for 1 hand filtered. The solid collected was washed with CH2Cl2 (100 mL) to give 1-Amino-4,6-dimethyl-1H-pyrimidin-2-ylidene-ammonium 2,4,6-Trimethyl-benzenesulfonate (40 g, yield: 62%).

Workup

filtrationfiltered
customThe solid collected
washwas washed with CH2Cl2 (100 mL)

Sources & evidence

ORD record: ord-35dcf7c9ccca46ff984dc6d11c43df7c
Source dataset: uspto-grants-2012_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08133897B2

Linked notes

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