1,2-Difunctionalization of Aryl Triflates: A Direct and Modular Access to Diversely Functionalized Anilines
作者:Seoyoung Cho、Qiu Wang
DOI:10.1021/acs.orglett.0c00320
日期:2020.2.21
ortho-Amino difunctionalization of aryl triflates has been achieved via a three-component reaction. The cascade reaction proceeds through a zincate base-mediated deprotonative formation of a reactive aryne intermediate, in situ nucleophilic addition, and coupling with electrophilic partners. This strategy leverages the advantageous reactivity of organozincate intermediates, enabling the installation
Preparation of Functionalized Aryl Magnesium Reagents by the Addition of Magnesium Aryl Thiolates and Amides to Arynes
作者:Wenwei Lin、Ioannis Sapountzis、Paul Knochel
DOI:10.1002/anie.200500443
日期:2005.7.4
The Benzyne Aza-Claisen Reaction
作者:Alastair A. Cant、Guillaume H. V. Bertrand、Jaclyn L. Henderson、Lee Roberts、Michael F. Greaney
DOI:10.1002/anie.200901410
日期:2009.6.29
Adding an aryne to a tertiary allylamine affords o‐allylaniline products of an aza‐Claisenrearrangement. The aryne simultaneously provides the π component for the rearrangement and the quaternization event that lowers the activation energy for the sigmatropic shift. The reaction was applied to the synthesis of medium‐ring benzannulated amines (see scheme).