A simplified effective synthetic process is described for the diastereoselective synthesis of the chiral C2-symmetric CF3-ureas (R,R)-15 and (S,S)-15 from (S)-α-phenylethylamine, glyoxal and CF3I.
                                    描述了一种简化的有效合成方法,用于由(S)-
α-苯乙胺,
乙二醛和CF 3进行非对映选择性合成手性C 2-对称CF 3-
脲(R,R)-15和(S,S)-15一世。