As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 2240-88-2, name is 3,3,3-Trifluoropropan-1-ol, molecular formula is C3H5F3O, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. Safety of 3,3,3-Trifluoropropan-1-ol
A solution of DIAD (0.743 mL, 3.82 mmol) in THF (2.00 mL) was added slowly to a solution of 4-fluoro-3-nitrophenol (500 mg, 3.18 mmol), 3,3,3-trifluoropropan-l-ol (0.310 mL, 3.50 mmol) and PPli3 (1.00 g, 3.82 mmol) in THF (10.0 mL). The resulting reaction mixture was allowed to stir at RT overnight, after which TLC (20percent EtOAc in Hex) and LC-MS analysis showed product formation. Reaction mixture was concentrated under reduced pressure and residue purified by flash column chromatography: silica gel with a gradient of 5-20percent EtOAc in Hex to afford l-fluoro-2-nitro-4-(3,3,3-trifluoropropoxy)benzene (322 mg, 40.0 percent yield) as a clear golden oil. NMR (400 MHz, DMSO-ifc) d 7.68 (dd, J= 6.0, 3.2 Hz, 1H), 7.54 (dd, J= 10.9, 9.2 Hz, 1H), 7.42 (dt, J = 9.3, 3.5 Hz, 1H), 4.31 (t, .7= 5.9 Hz, 2H), 2.8l (qt, /= 11.4, 5.9 Hz, 2H). 19F NMR (376 MHz, DMSO-ifc) d -63.06 (t, J= 11.2 Hz, 3F), -129.28 (ddd, J= 10.3, 6.0, 3.6 Hz, IF). LCMS RT (Method 2) = 3.491 min.
With the rapid development of chemical substances, we look forward to future research findings about 2240-88-2.
Reference:
Patent; THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES; PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE; SOUTHALL, Noel T.; VON BERNHARDI, Rommy M.; ALVAREZ, Alejandra; DEXTRAS, Christopher R.; DULCEY, Andres E.; MARUGAN, Juan J.; ZANLUNGO, Silvana; TALLEY, Daniel C.; FERRER, Marc; HU, Xin; (0 pag.)WO2019/173761; (2019); A1;,
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