作者:Lorenzo Zani、Torsten Eichhorn、Carsten Bolm
DOI:10.1002/chem.200601347
日期:2007.3.16
A one-pot, enantioselective synthesis of N-aryl propargylic amines, using alkynylation reagents obtained from dimethylzinc and terminal acetylenes in combination with various aldehydes and o-methoxyaniline as starting materials, has been developed. Enantiopure beta-amino alcohols derived from norephedrine were used as non-covalent chiral auxiliaries, both in stoichiometric or substoichiometric amount
已经开发出一种N-芳基炔丙基胺的一锅,对映选择性合成,该合成使用得自二甲基锌和末端乙炔的炔基化试剂与各种醛和邻甲氧基苯胺相结合作为起始原料。衍生自去甲麻黄碱的对映体纯β-氨基醇以化学计量或亚化学计量的量用作非共价手性助剂。优化后,可以以高到高的收率(最高93%)和中等到高的对映体过量(最高ee达97%)获得炔丙基胺。证明了反应后回收手性助剂的可能性。