Development and Application of a New General Method for the Asymmetric Synthesis of <i>s</i><i>yn</i>- and <i>a</i><i>nti</i>-1,3-Amino Alcohols
作者:Takuya Kochi、Tony P. Tang、Jonathan A. Ellman
DOI:10.1021/ja0363462
日期:2003.9.1
general method is described for asymmetric synthesis of both syn- and anti-1,3-amino alcohols. The first application of metalloenamines derived from N-sulfinyl imines is reported for the highly diastereoselective addition to aldehydes. The reduction of the product beta-hydroxy N-sulfinyl imines 2 with catecholborane and LiBHEt(3) provides syn- and anti-1,3-amino alcohols with very high diastereomeric
描述了合成和反 1,3-氨基醇的不对称合成的一般方法。据报道,衍生自 N-亚磺酰基亚胺的金属烯胺首次应用于醛类的高度非对映选择性加成。用儿茶酚硼烷和 LiBHEt(3) 还原产物 β-羟基 N-亚磺酰基亚胺 2 可提供具有非常高的非对映体比率的顺-和反-1,3-氨基醇。发现该方法对于结合芳族或各种脂族取代基的多种底物是有效的。还完成了两种天然产物 (-)-8-epihalosaline 和 (-)-halosaline 的收敛和高效不对称合成。