An efficient enantioselective synthesis of florfenicol via asymmetric aziridination
作者:Zhonghua Wang、Feng Li、Lei Zhao、Qiuqin He、Fener Chen、Chen Zheng
DOI:10.1016/j.tet.2011.09.052
日期:2011.11
An efficient enantioselective synthesis of florfenicol is accomplished in 44.7% overall yield from commercially available p-(methylsulfonyl)benzaldehyde. Key features of this synthesis are the asymmetric aziridination reaction mediated by the Wulff’s catalyst in situ derived from (R)-VANOL and diastereoselectively ring-opening of (2S,3S)-fluoroaziridine 13.
从可商购的对-(甲基磺酰基)苯甲醛以44.7%的总收率完成氟苯尼考的有效对映选择性合成。该合成的主要特点是通过伍尔夫的催化剂在衍生自原位介导的不对称氮杂环丙烷反应([R)-VANOL和(2的非对映选择性开环小号,3小号)-fluoroaziridine 13。