Pseudoephedrine as a Chiral Auxiliary for Asymmetric Michael Reactions: Synthesis of 3-Aryl-δ-lactones
作者:Jacqueline H. Smitrovich、Geneviève N. Boice、Chuanxing Qu、Lisa DiMichele、Todd D. Nelson、Mark A. Huffman、Jerry Murry、James McNamara、Paul J. Reider
DOI:10.1021/ol0259847
日期:2002.5.1
[reaction: see text] The asymmetric Michael reaction of pseudoephedrine amides is reported. The 1,5-dicarbonyl products are converted to 3-aryl-delta-lactones in a two-step reduction/lactonization sequence. This method provides access to enantiomerically enriched trans-3,4-disubstituted delta-lactones.
[反应:见正文]报道了伪麻黄碱酰胺的不对称迈克尔反应。1,5-二羰基产物按两步还原/内酯化顺序转化为3-芳基-δ-内酯。该方法提供了对映体富集的反式3,4-二取代的δ-内酯的途径。