the first time to synthesize pharmaceutically important α-aminoketonesfrom readily available benzylic secondary alcohols and amines using N-bromosuccinimide. This new reaction proceeds via three consecutive steps involving oxidation of alcohols, α-bromination of ketones, and nucleophilic substitution of α-bromo ketones to give α-aminoketones. Importantly, this novel one-pot greener reaction avoids
Asymmetric synthesis of N-diphenylphosphinoylamines by solvent-free enantioselective addition of dialkylzincs to N-diphenylphosphinoylimines
作者:Itaru Sato、Ryo Kodaka、Kenso Soai
DOI:10.1039/b106775n
日期:2001.11.15
Solvent-free enantioselective addition of dialkylzincs to N-diphenylphosphinoylimines in the presence of chiral 2-morpholino-1-phenylpropan-1-ol affords N-diphenylphosphinoylamines with up to 97% ee. The reaction in the solvent-free system is faster than in organic solvents.