Highly Diastereoselective Indium-Mediated Allenylation of N-tert-Butanesulfinyl Imino Ester: Efficient Synthesis of Optically Active α-Allenylglycines
作者:Shen-Shuang Jin、Ming-Hua Xu
DOI:10.1002/adsc.201000688
日期:2010.12.17
An efficient and practical asymmetric synthesis of highly enantiomerically enriched α-allenylglycines by room temperature indium-mediated allenylation of chiral N-tert-butanesulfinyl imino esters with propargylic halides is described. The synthetic utilities of the approach were demonstrated by the rapid and convenient preparation of challenging cis-substituted proline derivatives.
描述了通过室温铟介导的手性N-叔-丁亚磺酰基亚氨基酯与炔丙基卤化物的铟铟介导的烯丙基化,来高效且实用地不对称地合成高度对映体富集的α-烯基甘氨酸。快速,方便地制备具有挑战性的顺式取代的脯氨酸衍生物证明了该方法的合成效用。