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| | 2,2-dimethyl-2H-pyrido[3,2-b]-1,4-oxazin-3(4H)-one Basic information |
| Product Name: | 2,2-dimethyl-2H-pyrido[3,2-b]-1,4-oxazin-3(4H)-one | | Synonyms: | 2,2-dimethyl-2H-pyrido[3,2-b]-1,4-oxazin-3(4H)-one;Einecs 243-753-2;2,2-dimethyl-4H-pyrido[3,2-b][1,4]oxazin-3-one;2,2-diMethyl-2H,3H,4H-pyrido[3,2-b][1,4]oxazin-3-one;2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one, 2,2-diMethyl-;2,2-dimethyl-4H-pyrido[2,3-e][1,4]oxazin-3-one;2,2-Dimethyl-2H-pyrido[3,2-b][1,4]oxazin-3(4H);2,2-DIMETHYL-2H-PYRIDO(3,2-B)(1,4)OXAZINE-3(4H)-ONE | | CAS: | 20348-21-4 | | MF: | C9H10N2O2 | | MW: | 178.19 | | EINECS: | 243-753-2 | | Product Categories: | | | Mol File: | 20348-21-4.mol | ![2,2-dimethyl-2H-pyrido[3,2-b]-1,4-oxazin-3(4H)-one Structure](CAS/GIF/20348-21-4.gif) |
| | 2,2-dimethyl-2H-pyrido[3,2-b]-1,4-oxazin-3(4H)-one Chemical Properties |
| Boiling point | 352.5±37.0 °C(Predicted) | | density | 1.176±0.06 g/cm3 (20 ºC 760 Torr) | | storage temp. | Store at room temperature | | pka | 11.13±0.40(Predicted) | | form | solid | | Appearance | White to off-white Solid | | InChI | InChI=1S/C9H10N2O2/c1-9(2)8(12)11-7-6(13-9)4-3-5-10-7/h3-5H,1-2H3,(H,10,11,12) | | InChIKey | DMLNXUUGRSBBBR-UHFFFAOYSA-N | | SMILES | O1C(C)(C)C(=O)NC2=NC=CC=C12 |
| HS Code | 2934999090 | | Storage Class | 11 - Combustible Solids | | Hazard Classifications | Acute Tox. 4 Oral |
| | 2,2-dimethyl-2H-pyrido[3,2-b]-1,4-oxazin-3(4H)-one Usage And Synthesis |
| Synthesis | Step - (i): Synthesis of 2,2-dimethyl-2H-pyrido[3,2-B][1,4]oxazin-3(4H)-one (18.1)
2-Amino-3-hydroxypyridine (5 g, 45.45 mmol) was dissolved in acetone (50 mL) at 20-35 °C and stirred to form a solution. Subsequently K2CO3 (25.09g, 181.81mmol) was added followed by dropwise addition of ethyl 2-bromo-2-methylpropionate (13.29g, 68.18mmol). The reaction mixture was stirred at 70 °C for 16 hours. After completion of the reaction, the mixture was cooled to 20-35 °C and diluted with ice water. The resulting solid was collected by filtration and washed with water to afford the target compound as a white solid (5g, 97% yield).
1H NMR (400MHz, DMSO-d6): [specific NMR data should be added here]. | | References | [1] Patent: WO2015/71780, 2015, A1. Location in patent: Page/Page column 22
[2] Tetrahedron Letters, 2010, vol. 51, # 14, p. 1852 - 1855
[3] Acta Chemica Scandinavica (1947-1973), 1969, vol. 23, p. 2322 - 2324 |
| | 2,2-dimethyl-2H-pyrido[3,2-b]-1,4-oxazin-3(4H)-one Preparation Products And Raw materials |
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