Nucleophilic<i>ortho</i>-Propargylation of Aryl Sulfoxides: An Interrupted Pummerer/Allenyl Thio-Claisen Rearrangement Sequence
作者:Andrew J. Eberhart、David J. Procter
DOI:10.1002/anie.201300223
日期:2013.4.2
A new direction: The nucleophilic ortho‐propargylation of aryl sulfoxides exploits intermolecular delivery of the nucleophile to sulfur followed by an intramolecular relay to carbon (see scheme). The simple, metal‐free procedure is general, regiospecific with regard to the propargyl nucleophile, and completely selective for products of ortho‐propargylation over allenylation.
一个新的方向:芳基亚砜的亲核邻炔丙基化利用了亲核分子向硫的分子间传递,然后是分子间的对碳的中继(参见方案)。对于炔丙基亲核试剂而言,简单,无金属的方法是通用的,区域特异性的,并且对烯丙基化过程中邻炔丙基化的产物具有完全的选择性。