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| | 2,2-Difluoro-5-aminobenzodioxole Basic information |
| Product Name: | 2,2-Difluoro-5-aminobenzodioxole | | Synonyms: | IFLAB-BB F2108-0168;2,2-Difluoro-1,3-benzodioxol-5-ylamine;2,2-Difluoro-5-aminobenzodioxole 98%;2,2-Difluoro-5-aminobenzodioxole98%;2,2-DIFLUORO-1,3-BENZODIOXOL-5-AMINE;2,2-DIFLUORO-5-AMINOBENZODIOXOLE;2,2-DIFLUORO-5-AMINO-1,3-BENZODIOXOLE;2,2-DIFLUORO-BENZO[1,3]DIOXOL-5-YLAMINE | | CAS: | 1544-85-0 | | MF: | C7H5F2NO2 | | MW: | 173.12 | | EINECS: | 639-983-1 | | Product Categories: | Heterocycles series | | Mol File: | 1544-85-0.mol |  |
| | 2,2-Difluoro-5-aminobenzodioxole Chemical Properties |
| Boiling point | 95-97°C 12mm | | density | 1.51±0.1 g/cm3(Predicted) | | refractive index | 1.498 | | Fp | 95-97°C/12mm | | storage temp. | Keep in dark place,Sealed in dry,2-8°C | | pka | 4.18±0.40(Predicted) | | form | clear liquid | | color | Colorless to Brown | | Water Solubility | Not miscible or difficult to mix in water. | | Sensitive | Light Sensitive | | BRN | 1343593 | | InChI | InChI=1S/C7H5F2NO2/c8-7(9)11-5-2-1-4(10)3-6(5)12-7/h1-3H,10H2 | | InChIKey | CVYQRDKVWVBOFP-UHFFFAOYSA-N | | SMILES | O1C2=CC=C(N)C=C2OC1(F)F | | CAS DataBase Reference | 1544-85-0(CAS DataBase Reference) |
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ALFA
| English |
| | 2,2-Difluoro-5-aminobenzodioxole Usage And Synthesis |
| Uses | 5-Amino-2,2-difluoro-1,3-benzodioxole is used as a pharmaceutical intermediate. | | Synthesis | Under nitrogen atmosphere, 2,2-difluoro-5-nitro-1,3-benzodioxolane (69.1, 0.5 g, 2.46 mmol, 1.0 eq.) was dissolved in methanol (3.0 mL) and this solution was added to a 10% palladium/carbon (0.05 g) suspension in methanol (5.0 mL). Subsequently, the reaction system was purged with hydrogen for 2 hours. Upon completion of the reaction, the reaction mixture was filtered through diatomaceous earth and washed with methanol. The collected filtrate was concentrated under reduced pressure to give the crude product. The crude product was purified by n-hexane milling to finally give 2,2-difluorobenzo[d][1,3]dioxolan-5-amine (69.2, 0.31 g, 72.5% yield). Mass spectrum (electrospray ionization): m/z 173.12 [M + H]+. | | References | [1] Journal of Organic Chemistry, 2008, vol. 73, # 17, p. 6780 - 6783
[2] Patent: US2016/251376, 2016, A1. Location in patent: Paragraph 0895; 0896; 0897 |
| | 2,2-Difluoro-5-aminobenzodioxole Preparation Products And Raw materials |
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