In Situ Generation of Nucleophilic Allenes by the Gold-Catalyzed Rearrangement of Propargylic Esters for the Highly Diastereoselective Formation of Intermolecular C(sp<sup>3</sup>)C(sp<sup>2</sup>) Bonds
作者:Yang Yu、Weibo Yang、Frank Rominger、A. Stephen K. Hashmi
DOI:10.1002/anie.201302402
日期:2013.7.15
particular for the synthesis of isochromane derivatives (see scheme), are provided by the title reaction. Excellent diastereoselectivites are achieved in this reaction which proceeds through a gold‐catalyzed 1,3‐acyloxy migration. In some cases exclusively the Z isomer is detected.
标题反应提供了新的观点,特别是对于异色烷衍生物的合成(见方案)。该反应通过金催化的1,3-酰氧基迁移而实现了出色的非对映选择性。在某些情况下,仅检测到Z异构体。