1-(α-Aminobenzyl)-2-naphthol: A New Chiral Auxiliary for the Synthesis of Enantiopure α-Aminophosphonic Acids
作者:Kirill E. Metlushka、Boris A. Kashemirov、Viktor F. Zheltukhin、Dilyara N. Sadkova、Bernd Büchner、Christian Hess、Olga N. Kataeva、Charles E. McKenna、Vladimir A. Alfonsov
DOI:10.1002/chem.200802540
日期:2009.7.6
Ooh Betti! A new diastereoselective synthesis of α‐aminophosphonates has been developed based on the reaction of trialkyl phosphites with chiral imines derived from (R)‐ or (S)‐1‐(α‐aminobenzyl)‐2‐naphthol (Betti base; see scheme, X=H, CH3, or Br). The reaction proceeds with high diastereoselectivity. Treatment with HCl results in the formation of the desired α‐aminophosphonic acids.
哦,贝蒂!基于亚磷酸三烷基酯与衍生自(R)-或(S)-1-(α-氨基苄基)-2-萘酚的手性亚胺的反应,开发了一种新的非对映选择性的α-氨基膦酸酯合成(贝蒂碱;参见图式, X = H,CH 3或Br)。反应以高非对映选择性进行。用HCl处理可形成所需的α-氨基膦酸。