Convenient synthesis of aliphatic (CF3)2N-compounds
作者:Christoph Breitenstein、Nikolai Ignat’ev、Walter Frank
DOI:10.1016/j.jfluchem.2017.11.007
日期:2018.6
Convenient syntheses of organic compounds bearing the (CF3)2N group by means of nucleophilic substitution reactions with the [N(CF3)2]− anion were developed. The syntheses and properties of previously unknown N,N-bis(trifluoromethyl)glycine (CF3)2NCH2C(O)OH and its derivatives are described.
An NMR, IR and theoretical investigation of the methyl effect on conformational isomerism in 3-fluoro-3-methyl-2-butanone and 1-fluoro-3,3-dimethyl-2-butanone
作者:Cl�udio F. Tormena、Roberto Rittner、Raymond J. Abraham
A diastereoselective Mannichreaction of simple α-fluoro ketones with N-tert-butylsulfinylimines was developed. This method provides a concise route to a variety of structurally diverse α-fluoro-β-amino ketones containing fluorinated stereogenic carbon centers; good yields and high diastereoselectivities were achieved. This method uses readily accessible starting materials and has a broad substrate
A ruthenium complex RuCl[(S,S)-Tsdpen](p-cymene) represented by a formula below and a ketone compound are placed in a polar solvent, and the resulting mixture is mixed under pressurized hydrogen to hydrogenate the ketone compound and to thereby produce an optically active alcohol: