Proline‐Mediated Enantioselective Construction of Tetrahydropyridines<i>via</i>a Cascade Mannich‐Type/Intramolecular Cyclization Reaction
作者:Rong‐Gang Han、Yao Wang、Yu‐Ye Li、Peng‐Fei Xu
DOI:10.1002/adsc.200800253
日期:2008.7.7
A highly diastereo- and enantioselective synthesis of 2,3-disubstituted tetrahydropyridines was accomplished via a proline-mediated cascade Mannich-type/intramolecular cyclization reaction from preformed N-PMP (p-methoxyphenyl) aldimines and inexpensive aqueous tetrahydro-2H-pyran-2,6-diol.
通过脯氨酸介导的级联曼尼希型/分子内环化反应,从预先形成的N -PMP(对甲氧基苯基)醛亚胺和廉价的四氢-2 H-吡喃-水溶液中进行高度非对映和对映选择性的合成2,3-二取代的四氢吡啶2,6-二醇。