Asymmetric Synthesis of β-Amino Carbonyl Compounds with <i>N</i>-Sulfinyl β-Amino Weinreb Amides
作者:Franklin A. Davis、M. Brad Nolt、Yongzhong Wu、Kavirayani R. Prasad、Danyang Li、Bin Yang、Kerisha Bowen、Seung H. Lee、John H. Eardley
DOI:10.1021/jo0402780
日期:2005.3.1
readily add to enantiopure N-sulfinyl β-amino Weinreb amides providing the corresponding, stable, N-sulfinyl β-amino carbonyl compounds in good to excellent yields. This new methodology represents a general solution to the problem of β-amino carbonyl syntheses, which are important chiral building blocks and constituents of natural products. N-Sulfinyl β-amino Weinreb amides are prepared by reaction of the
多种有机金属试剂可以轻松地添加到对映体纯的N-亚磺酰基β-氨基Weinreb酰胺中,从而以良好或优异的收率提供相应的,稳定的N-亚磺酰基β-氨基羰基化合物。这种新的方法论代表了解决β-氨基羰基合成问题的一般方法,β-氨基羰基合成是重要的手性结构单元和天然产物的组成部分。N-亚磺酰基β-氨基Weinreb酰胺是通过N-甲氧基N-甲基乙酰胺的烯醇钾与亚磺胺(N-亚磺酰基亚胺)或N,O-二甲基羟胺锂与N-亚磺酰基β-氨基酯反应制备的。