New optically active 3,5-dinitrosalicyloxazolines, derived from 3,5-dinitrosalicylonitrile and the chiral aminodiols (1S,2S)-(+)-2-amino-1-phenyl- 1,3-propanediol, (2S)-(-)-2-amino-1,1,4,4-tetraphenyl- 1,4-butanediol and (2S)-(-)-2-aminol, 1-diphenyl-1,3-butanediol, were prepared and used as in situ catalysts for enantioselective cyclopropanation reactions.
从3,5-二硝基水杨腈和手性氨基醇(1S,2S)-(+)-2-氨基-1-苯基-1,3-丙二醇,(2S)-(-)-2-氨基-1,1,4,4-四苯基-1,4-丁二醇和(2S)-(-)-2-氨基-1,二苯基-1,3-丁二醇衍生出新的光学活性3,5-二硝基水杨酰噁唑,并用作原位催化剂进行对映选择性环丙烷化反应。