A novel route to chiral amides through the efficient, non-racemising, cleavage of N-acyl side chains from a âQuatâ chiral auxiliary using N-centred nucleophiles is described. The synthetic utility of the procedure is then highlighted by the preparation of a range of succinamide and succinimide derivatives and through the synthesis of the natural product (S)-(+)-amphetamine via a stereospecific Hofman type degradation using a hypervalent iodine reagent.
该研究介绍了一种新型的手性酰胺制备方法,即利用N-中心亲核物从 "Quatâ "手性助剂中高效、非消光地裂解N-酰基侧链。随后,通过制备一系列琥珀酰胺和琥珀
酰亚胺衍
生物,以及使用高价
碘试剂通过立体特异性霍夫曼降解合成
天然产物 (S)-(+)- 苯
丙胺,突出了该方法的合成用途。