Enantioselective (Formal) Aza-Diels−Alder Reactions with Non-Danishefsky-Type Dienes
作者:Uttam K. Tambar、Sharon K. Lee、James L. Leighton
DOI:10.1021/ja104480g
日期:2010.8.4
Enantioselective (formal) aza-Diels-Alder reactions between acylhydrazones and non-Danishefsky-type dienes have been developed. The reactions are promoted by a simple and economical chiral silicon Lewis acid and are typically conducted at ambient temperature. Both glyoxylate- and aliphatic aldehyde-derived hydrazones may be employed, as may variously substituted dienes, leading to the synthesis of
已经开发了酰基腙和非 Danishefsky 型二烯之间的对映选择性(正式)氮杂-Diels-Alder 反应。该反应由简单且经济的手性硅路易斯酸促进,并且通常在环境温度下进行。可以使用乙醛酸和脂肪醛衍生的腙,也可以使用各种取代的二烯,导致合成各种四氢吡啶,具有良好到极好的对映选择性。