One-Pot Zinc-Promoted Asymmetric Alkynylation/Brook-Type Rearrangement/Ene-Allene Cyclization: Highly Selective Formation of Three New Bonds and Two Stereocenters in Acyclic Systems
作者:Polina Smirnov、Jomon Mathew、Anne Nijs、Einat Katan、Miriam Karni、Carsten Bolm、Yitzhak Apeloig、Ilan Marek
DOI:10.1002/anie.201306749
日期:2013.12.16
It's as easy as 1, 2, 3: In a one‐pot sequence, twostereocenters and threenewbonds were created with high selectivity through an asymmetricalkynylation of acyl silanes, a tandem Brook‐type rearrangement and Zn–ene–allene cyclization, the addition of an electrophile, and finally oxidation (see scheme). The straightforward nature of the synthetic procedure contrasts strongly with the complexity of