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CAS No. : | 1194-21-4 | MDL No. : | MFCD12028107 |
Formula : | C4H4ClN3O | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | VBWACOJLJYUFKJ-UHFFFAOYSA-N |
M.W : | 145.55 | Pubchem ID : | 135403356 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H332-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86% | With sodium hydroxide; In water; for 5h;Reflux; | To a solution of 4,6-dichloropyrimidin-2-amine (21.2 g, 129.27 mmol) in 200 mL of IN NaOH was added NaOH (4 g, 100.00 mmol) in several batches. The resulting solution was refluxed for 5 hours. The reaction mixture was cooled in a bath of H2O/ice. Adjustment of the pH to 5-6 was accomplished by the addition of CH3COOH. A filtration was performed and the filter cake was collected. The solid was washed with water and dried under an oven with reduced pressure. This resulted in 17 g (86percent) of 2-amino-6-chloropyrirnidin-4(3H)-one as a white solid. |
With sodium hydroxide; water; for 5h;Heating / reflux; | 2-Amino-4, 6-dichloropyrimidine (10.6 g) was suspended in 1N NAOH (100 mL) and heated to reflux. Additional NaOH(s) (1.0 g) was added after 2 h and 4 h. After 5H, the solution was cooled with an ice bath and neutralized with acetic acid. The white precipitate was filtered, washed with water, and dried on a high vacuum to yield 9.28 g of white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
72% | In water; at 120 - 130℃; for 8h; | Preparation of Intermediate N-lTo a solution of Intermediate M (5g, 34.48 mmol) was added 40percent aqueous methyl amine solution (50 mL), and the resulting mixture was heated in a steel bomb at 120-130 °C (bath temperature) for 8 hours. The reaction mixture was cooled to room temperature and then concentrated to obtain a crude residue that was washed with EtOH several times to obtain pure Intermediate N-l (3.5g, 72percent). Rf = 0.6 (20percent MeOH/CHCl3/0.2 mL of aqueous NH3). 1H-NMR (400MHz, DMSO-d6) delta 9.66 (br. s, exchanged with D20, 1H), 6.25 (br. s, exchanged with D20, 1H), 6.10 (br. s, exchanged with D20, 2H), 4.36 (s, exchanged with D20, 1H), 2.61(s, 3H). Mass (APCI positive mode, m/z): 141.0 (M++l). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In water; at 120 - 130℃; for 8h; | Synthesis of Compound (50)To a solution of Intermediate M (5g, 34.48 mmol) was added n-propylamine (50 mL) and H20 (20 mL), and the resulting mixture was heated in a steel bomb at 120-130 °C (bath temperature) for 8 hours. The reaction mixture was cooled to room temperature and concentrated to obtain a crude residue. This residue was washed with EtOH several times to obtain pure Compound (50) as a yellow solid. Rf = 0.5(20percent MeOH/CHC /0.2 mL of aqueous NH3). - MR (400MHz, DMSO-<3/4) delta 9.62 (s, exchanged with D20, 1H), 6.35 (s, exchanged with D20, 1H), 6.10 (s, exchanged with D20, 1H), 4.49 (s, 1H), 3.34 (br. s, 2H), 1.70-1.60 (m, 2H), 0.85 (t, J = 7.6 Hz, 2H). Mass (m/z): 168.8 (M++l). HPLC: (Column: Acquity; UPLC BEH; C-8 (100 chi 2.1 mm) 1.7 mu, A: 0.05M Ammonium bicarbonate (Aqueous), B: Acetonitrile, T/percentB: 0/20, 4/80, 6/80, 6.1/20, Flow rate: 0.3 mL/min, Diluent: A:B (7:3)), Rt=1.194 min, 98.07 (215 nra), 98.51 (254 nra), 96.45 (Max plot). |
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